RA-1900_11586_CA_MRP_20230731

2725 E. Millbrook Road, Suite 121
Raleigh, NC 27604
Telephone [phone]
www.atcgroupservices.com

July 31, 2023

Ms. Kristie Oseguera
North Carolina Department of Environmental Quality
Division of Waste Management – Underground Storage Tank Section
1646 Mail Service Center
Raleigh, North Carolina 27699-1646

Subject: Groundwater Monitoring Report
Barbara Spencer Property
Gentry Ridge Road
Roxboro, Person County, North Carolina
NCDEQ Incident No. 11586

Dear Ms. Oseguera:

ATC Associates of North Carolina, P.C. (ATC) is submitting the enclosed Groundwater Monitoring Report for
the Barbara Spencer Property. The report presents investigative procedures, field activities, and laboratory
analytical results for a groundwater sampling event and subsequent resampling of the water supply wells
conducted in May and June 2023.

If you have any questions or require additional information, please contact our office at
[phone].

Sincerely,
ATC Associates of North Carolina, P.C.

Corinne Lally Gabriel Araos, P.E.
Project Scientist Senior Project Manager
Direct Line: 919-948-7379 Direct Line: 919-573-1205
Email: [e-mail] Email: [e-mail]

Attachments:
1. Groundwater Monitoring Report

Prepared for:

North Carolina Department of Environmental Quality
Division of Waste Management – Underground Storage Tank Section
1646 Mail Service Center
Raleigh, North Carolina 27699

GROUNDWATER MONITORING REPORT
BARBARA SPENCER PROPERTY
INCIDENT # 11586
GENTRY RIDGE ROAD
ROXBORO, PERSON COUNTY, NORTH CAROLINA

ATC Project No. STL1158601

Prepared by:

ATC Associates of North Carolina, P.C.
2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina 27604
Telephone [phone]

Corinne Lally.
Project Scientist
Direct Line: 919-948-7379
Email: [e-mail]

Gabriel Araos, P.E.
Senior Project Manager
Direct Line: 919-573-1205
Email: [e-mail]

July 31, 2023
Barbara Spencer Property
July 31, 2023
Page 1 of 9

ATC Project No. STL1158601 NCDEQ State Lead Program
Table of Contents
1.0 SITE IDENTIFICATION .......................................................................................................................... 2
2.0 EXECUTIVE SUMMARY ........................................................................................................................ 3
3.0 SITE DESCRIPTION .............................................................................................................................. 3
3.1 SITE CHARACTERIZATION .................................................................................................................................... 3
3.2 SITE BACKGROUND ............................................................................................................................................ 4
4.0 GROUNDWATER CHARACTERIZATION ........................................................................................... 7
5.1 GROUNDWATER LEVELS...................................................................................................................................... 7
5.2 GROUNDWATER QUALITY ................................................................................................................................... 8
5.2.1 Monitoring Wells ..................................................................................................................................... 8
5.2.2 Water Supply Wells .................................................................................................................................. 8
5.2.3 Quality Assurance and Quality Control .................................................................................................... 9
6.0 CONCLUSIONS AND RECOMMENDATIONS .................................................................................... 9
7.0 LIMITATIONS ........................................................................................................................................ 10

TABLES:
Table 1 – Water Supply Well Information
Table 2 – Well Construction and Groundwater Elevation Data
Table 3 – Field Parameters
Table 4 – Groundwater Analytical Results
Table 5 – Historical Groundwater Analytical Results
Table 6 – Water Supply Well Analytical Results

FIGURES:
Figure 1 – Site Topographic Map
Figure 2 – Site Map
Figure 3 – Water Supply Well Location Map
Figure 4 – Groundwater Elevation Contour Map
Figure 5 – Dissolved Benzene Isoconcentration Contour Map
Figure 6 – Additional Contaminants of Concern in Groundwater Map

APPENDICES:
Appendix A – Conceptual Site Model
Appendix B – Field Notes
Appendix C – Site Photographs
Appendix D – Laboratory Analytical Results
Appendix E – Signed Water Supply Well Access Letters

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ATC Project No. STL1158601 NCDEQ State Lead Program
2.0 EXECUTIVE SUMMARY

ATC Associates of North Carolina, P.C. (ATC) has completed a Groundwater Monitoring Report (GMR) for
the Barbara Spencer site, located approximately 900 feet north of the intersection of Gentry Ridge Road
and Todd Road in Roxboro, Person County, North Carolina. This report documents monitoring well
sampling activities conducted at the site. The GMR was performed based on the Task Authorization (TA-
1), dated April 27, 2023, by the Trust Fund Branch of the Underground Storage Tank (UST) Section,
Division of Waste Management, North Carolina Department of Environmental Quality (NCDEQ). The work
is performed as part of the State Lead Contract #N70522-B between NCDEQ and ATC.

The Barbara Spencer site is currently a vacant wooded lot. One 550-gallon gasoline UST and one UST of
unknown size and contents were previously in operation at the site and subsequently removed in 1985 and
1994. Ten Type II monitoring wells are associated with the site. Municipal water is not available to the site
or surrounding area. Previous assessment activities have identified two active water supply wells (WSW-3
and WSW-4) within 1,000 feet of the site. Water supply well WSW-3 is located 150 feet south-southeast of
the site, and WSW-4 is located 700 feet north-northeast of the site.

ATC conducted a groundwater sampling event at the site on May 25, 2023. Prior to the sampling events,
ATC mailed a water supply well access letter, via certified mail, to the owner of water supply well WSW-4
in order to obtain access to collect water samples from their well. ATC personnel received a signed access
agreement from the owner of WSW-4. Groundwater samples were collected from monitoring wells MW-1,
MW-4R and MW-5 through MW-9, as well as water supply wells WSW-3 and WSW-4. Monitoring wells
MW-2, MW-3, and MW-10 could not be located during the sampling event. Due to an obstruction in
monitoring well MW-1, a used remediation sock, the well could not be purged prior to sample collection.
ATC personnel were unable to remove the obstruction. Light non-aqueous phase liquid (LNAPL) was not
detected during the May 25, 2023, sampling event. The groundwater flow direction observed during the
event was generally in the southeasterly direction.

Laboratory analysis indicated the presence of petroleum constituents exceeding the 15A NCAC 2L. 0202
Groundwater Quality Standards (2L Standards) in monitoring wells MW-1, MW-4R, MW-6, and MW-7. No
constituent was detected exceeding the gross contaminant levels (GCL). A comparison of the current
analytical results (May 2023) to the results of the previous sampling event (April 2021) indicates a decrease
in contaminant concentrations in monitoring wells MW-1. Laboratory analysis detected the presence of 1,2
dichloroethane in WSW-3 at a concentration that exceeded the 2L Standard but was consistent with
historical results. Ethyl alcohol was also detected in WSW-3 as a “J” value and below the 2L Standards.
The re-sampling of WSW-4 only detected ethyl alcohol as a “J” value and below the 2L Standards. The
presence of toluene and ethyl alcohol can be attributed to laboratory contaminants and not associated with
the site.

Based on the historical soil assessments and the current groundwater results, it appears that residual
petroleum contaminated soils from the former USTs are contributing to the groundwater impact at the site.
However, the expected depth of the impacted soil and the groundwater table (17 feet to 20 feet bgs)
preclude soil excavation activities. ATC recommends performing a mobile multi-phase extraction (MMPE)
event to recover impacted groundwater from MW-1 and MW-4R. ATC also recommends performing an
updated receptor survey to confirm the risk status for the site. During the receptor survey, ATC will confirm
the status of WSW-1 and obtain an agreement to sample the well if the well is used for drinking water
purposes. ATC will also review the construction details for WSW-3 for possible replacement options.

3.0 SITE DESCRIPTION

3.1 SITE CHARACTERIZATION

The Barbara Spencer Property site is located approximately 900 feet north of the intersection of Gentry
Ridge Road and Todd Road in Roxboro, Person County, North Carolina. One 550-gallon gasoline UST and
one UST of unknown size and contents were previously in operation at the site and subsequently removed
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ATC Project No. STL1158601 NCDEQ State Lead Program
in 1985 and 1994. The site is currently a vacant wooded lot. Municipal water is not available to the site or
surrounding area. Ten Type II monitoring wells are associated with the site. Previous assessment activities
have identified two active water supply wells (WSW-3 and WSW-4) within 1,000 feet of the site. Water
supply well WSW-3 is located 150 feet south-southeast of the site, and WSW-4 is located 700 feet north-
northeast of the site. A site topographic map is included as Figure 1 and a site map depicting monitoring
well locations and other pertinent site features is included as Figure 2. Water supply well ownership
information is included in Table 1. Water supply well locations are included as Figure 3. The Conceptual
Site Model is included as Appendix A.

3.2 SITE BACKGROUND

On April 29, 1994, ATEC Associates, Inc. (ATEC) submitted an Initial Investigation Report. ATEC
documented that the site formerly operated as the Gentry Store, a gasoline/convenience store, from 1921
to the mid-1980’s prior to development as a residence. The former Gentry Store included the operation of
two underground storage tanks (USTs) of unknown size and automotive repair. The barn currently located
on site was the original automotive repair garage for the Gentry Store. One former UST area is located on
the western portion of the site near Gentry Ridge Road, one UST may have been located on the southern
portion of the site, and a former waste oil and automotive fluid disposal area is suspected in the immediate
vicinity of the barn. In 1985, one UST was removed from the western portion of the site. A water supply well
was installed on site in August of 1993. The total depth of the water supply well was 135 feet below the
ground surface (bgs). A groundwater sample was collected from the well on December 3, 1993. The
laboratory reported benzene at a concentration above its 2L Standards. The laboratory also reported
several targeted analytes above their respective laboratory reporting limits but below their respective 2L
Standards. Subsequently, ATEC collected groundwater samples from four water supply wells (Bowse -
WSW-1, Marks – WSW-2, Franklin Gentry- WSW-3, and Cole Gentry-WSW-4) located in the immediate
vicinity of the site. Due to the presence of benzene in the site water supply well a Point of Entry system was
installed in 1994. The laboratory reported lead in three of the four wells at concentrations above its
laboratory reporting limit but below its 2L Standards.

On June 1, 1994, ATEC advanced nine soil borings at the site to assess soils in the area of the former UST
located on the western portion of the site and near the barn. Total Petroleum Hydrocarbons – Gasoline
Range Organics (TPH-GRO) were reported above the North Carolina Department of Environmental Quality
(NCDEQ) UST Section’s Action Level of 10 milligrams per kilogram (mg/kg) at a concentration of 23 mg/kg
in soil boring SB-1, which was located at the former UST area. The laboratory did not report TPH-GRO or
Total Petroleum Hydrocarbons – Diesel Range Organics (TPH-DRO) in the remaining soil samples. Based
on available information and interviews with the landowners, ATEC concluded there is a potential for
previously unidentified USTs to be located at the site. ATEC recommended performing a geophysical study
involving the use of Ground Penetrating Radar (GPR) and magnetic locator (magnetometer) methods in
order to evaluate the presence of other potential USTs at the site. ATEC submitted a Soil Sampling and
Analysis Report on ATEC dated July 1, 1994.

On August 15, 1994, ATEC conducted a geophysical survey at the site. The results of the survey identified
five anomalous areas. One of the anomalous areas, located adjacent to the southern margin of the former
UST excavation area, appeared likely to be a UST. Subsequently, ATEC identified and removed one 550-
gallon gasoline UST at the location of this anomaly. ATEC observed corrosion and several holes in the UST
and petroleum odors and staining originating from the UST basin. Approximately 64 tons of contaminated
soil were excavated from the 550-gallon UST area and the former UST area. The soils were disposed of at
a certified landfill and clean backfill was used to fill the excavation. Two soil samples were collected from
the base of each UST basin. TPH-GRO and/or TPH-DRO were reported above the Action Level of 10 mg/kg
in each of the soil samples. ATEC stated that the extent of soil contamination at the UST areas had not
been delineated at that time. ATEC submitted a UST Closure Report on October 19, 1994.

In January 1995, ATEC advanced four soil borings in the vicinity of the former UST locations. TPH GRO
was reported above the Action Level of 10 mg/kg at a concentration of 590 mg/kg in one of the four soil
samples. Three permanent monitoring wells (MW-1 through MW-3) were installed at the site. Three
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ATC Project No. STL1158601 NCDEQ State Lead Program
monitoring wells and four water supply wells were sampled at the site and the immediate vicinity. Monitoring
well MW-1 was impacted with petroleum constituents above their respective 2L Standards. The laboratory
analytical report did not report petroleum constituents above the laboratory reporting limits in the remaining
monitoring wells or water supply wells.

In October 1996, Mid-Atlantic Associates, P.A. (MAA) conducted a receptor survey of properties within
1,500 feet of the subject site. MAA contacted Mr. Tommy Warren of the City of Roxboro Engineering
Department regarding potential municipal water availability in the vicinity of the site. Mr. Warren indicated
that the city did not have future plans for expansion of municipal water lines in the vicinity of the site. MAA
collected groundwater samples from the three permanent monitoring wells and three adjacent water supply
wells. Monitoring well MW-1 was impacted with petroleum constituents above their respective 2L
Standards. The laboratory reported benzene at the 2L Standards of 1 microgram per liter (µg/L) in the
groundwater sample collected from monitoring well MW-3. The analytical laboratory report did not identify
petroleum constituents above the laboratory reporting limits in the remaining monitoring wells or water
supply wells. The on-site water supply well was abandoned on September 25, 1996.

Withers & Ravenel (W&R) submitted an Assessment Report June 6, 2012. W&R documented that several
groundwater monitoring events have been conducted over the years at the site and that five monitoring
wells (MW-1 through MW-5) have been installed at the site to investigate the release associated with the
former USTs. W&R stated that the horizontal delineation of the groundwater plume had not been completed
in the downgradient direction (south of monitoring well MW-4). Historical sampling data indicates that the
groundwater samples collected from monitoring wells MW-1 and MW-4 contain concentrations of petroleum
constituents above their respective 2L Standards and 1,2- dibromoethane at concentrations above its GCL
in the groundwater sample collected from monitoring well MW-4. Two Mobile Multi-Phase Extraction
(MMPE) events were conducted at the site in 2002 and 2003 in an attempt to remediate the dissolved
groundwater contaminant plume. Pre-MMPE and Post-MMPE analytical results indicate the effectiveness
of the MMPE as a groundwater remediation alternative was ineffective although contaminant levels
decreased in monitoring well MW-1, concentrations increased in monitoring well MW-4. W&R
recommended to continue water supply and monitoring well sampling; obtain access agreements from the
adjacent property owners to complete the horizontal delineation of the groundwater contaminant plume;
and excavation of approximately 200 to 300 tons of impacted soils remaining in the vicinity of the former
UST basins.

Terraquest Environmental Consultants, P.C. (Terraquest) conducted a groundwater sampling event at the
site on October 31, 2012. Laboratory analysis detected petroleum constituents in MW-4 exceeding the
GCLs. Additionally, constituents in monitoring well MW-1 exceeded the 2L Standards. Terraquest
recommended additional assessment of the horizontal and vertical extent of soil and groundwater
contamination at the site. Terraquest stated that soils located in the vicinity of the former UST basins are
impacted and the extent of contamination was unknown at that time. Comparison of the groundwater
analytical results obtained by Terraquest with historical data suggested that concentrations of targeted
compounds have generally remained consistent since 2006.

On August 22, 2014, ECS collected groundwater samples from monitoring wells MW-1 and MW-5. Due to
the overgrowth of kudzu and briars, ECS was unable to locate monitoring wells MW-2 and MW-3 with the
assistance of a metal detector and therefore, groundwater samples were not collected. Monitoring well MW-
4 was filled in with soil; therefore, a groundwater sample was not collected. Additionally, ECS collected
groundwater samples from water supply wells WSW-2 and WSW-3. Water supply well WSW-1 did not have
power; therefore, a groundwater sample was not collected. Laboratory analysis of the groundwater sample
collected from monitoring well MW-1 reported several targeted analytes at concentrations above their
respective 2L Standards, but below their respective GCLs. Laboratory analysis detected 1,2-dichloroethane
above its 2L Standard in water supply well WSW-3. Laboratory analysis detected 1,4-dichlorobenzene,
below its 2L Standard, in water supply well WSW-2.

On April 14 and 15, 2015, ECS installed three groundwater monitoring wells (MW-4R, MW-6, and MW-7)
at the site. Monitoring well MW-4R replaced the previously destroyed monitoring well MW-4. Monitoring
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ATC Project No. STL1158601 NCDEQ State Lead Program
wells MW-6 and MW-7 were installed on the adjacent property owned by Mr. Merrill Jordan. ECS collected
groundwater samples from monitoring wells MW-1 through MW-7 and collected groundwater samples from
water supply wells WSW-2 and WSW-3. The residence associated with water supply well WSW-1 was
vacant; therefore, a groundwater sample was not collected. Laboratory analysis detected 1,2-
dibromoethane in MW-1 exceeding its 2L Standard and its GCL. Laboratory analysis reported several
targeted analytes above their respective 2L Standards, but below their respective GCLs, in monitoring wells
MW-1, MW-4R, MW-6, and MW-7. Laboratory detected 1,2-dichloroethane in water supply well WSW-3
exceeding its 2L Standard. Laboratory analysis did not detect targeted analytes in monitoring wells MW-2,
MW-3, MW-5, or water supply well WSW-2.

On March 11 and 14, 2016, ECS installed three groundwater monitoring wells (MW-8, MW-9, and MW-10).
Monitoring wells MW-8 through MW-10 were installed on the adjacent property owned by Mr. Merrill Jordan.
ECS collected groundwater samples from monitoring wells MW-1 through MW-3, MW-4R, and MW-5
through MW-10 and collected a groundwater sample from water supply well WSW-3. Laboratory analysis
detected 1,2- dibromoethane in MW-1 exceeding its 2L Standard and its GCL. Laboratory analysis reported
several targeted analytes above their respective 2L Standards but below their respective GCLs in the
groundwater samples collected from monitoring wells MW-1, MW-3, MW-4R, MW-5, MW-6, and MW-7.
Laboratory analysis detected 1,2-dichloroethane in WSW-3 exceeding its 2L Standard. Laboratory analysis
did not report targeted analytes at concentrations above the 2L Standards in monitoring wells MW-2, MW-
3, MW-4R, MW-7, MW-8, MW-9, and MW-10.

On December 5, 2016, ECS collected groundwater samples from monitoring wells MW-1, MW-2, MW-3,
MW-4R, and MW-5 through MW-10, and water supply well WSW-3. Additionally, ECS deployed O-SOXs
in monitoring wells MW-1, MW-3, MW-6, and MW-7. Laboratory analysis detected 1,2-dibromoethane in
MW-1 exceeding its GCL. Benzene was also detected in MW-4R exceeding its GCL. Laboratory analysis
detected petroleum constituent concentrations exceeding the 2L Standards in MW-1, MW-4R, MW-5, MW-
6, and MW-7. Methyl chloride was detected in WSW-3 below its 2L Standard.

On June 15, 2017, ECS collected groundwater samples from monitoring wells MW-1, MW- 4R, MW-5
through MW-10, and water supply well WSW-3. Additionally, ECS deployed O-SOXs in monitoring wells
MW-1, MW-4R, MW-6, and MW-7. Laboratory analysis detected 1,2-dibromoethane in MW-1 exceeding its
GCL. Laboratory analysis also reported several additional targeted analytes above their respective 2L
Standards but below their respective GCLs in the groundwater samples collected from monitoring wells
MW-1, MW-4R, MW-6, and MW-7. Laboratory analysis did not report targeted analytes at concentrations
above their laboratory reporting limits in the groundwater collected from monitoring wells MW-2, MW-3,
MW-5, MW-9, and MW-10 and water supply well WSW-3.

On March 8, 2018, ECS collected groundwater samples from monitoring wells MW-1 through MW-10, and
water supply well WSW-3. Additionally, ECS deployed O-SOXs in monitoring wells MW-1, MW-4R, MW-6,
and MW-7. Laboratory analysis reported several analytes at concentrations above their 2L Standards but
below their GCLs in the groundwater samples collected from monitoring wells MW- 1, MW-4R, MW-6, and
MW-7. Laboratory analysis did not report targeted analytes at concentrations above laboratory reporting
limits in the groundwater collected from monitoring wells MW-2, MW-3, MW- 5, MW-8, MW-9, and MW-10
and water supply well WSW-3. Laboratory analysis from the June 2017 sampling event reported methyl
chloride at a concentration above its laboratory reporting limit but below its 2L Standards in the groundwater
sample collected from monitoring well MW-10. During this sampling event, ECS collected an unpreserved
sample from monitoring well MW-10. Laboratory analysis of this sample contained no detectable amounts
of methyl chloride. ECS concluded that the historic methyl chloride detection in MW-10 is related to
laboratory contamination caused by the possible interaction between groundwater and the HCL
preservative.

On November 29, 2018, ECS collected groundwater samples from monitoring wells MW-1 through MW-10,
and water supply well WSW-3. After sampling the monitoring wells, ECS deployed O-SOXs in monitoring
wells MW-1, MW-4R, MW-6, and MW-7. Laboratory analysis of the groundwater samples collected from
monitoring wells MW-1, MW-4R, MW-6, and MW-7 detected several targeted analytes at a concentrations
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ATC Project No. STL1158601 NCDEQ State Lead Program
above their respective 2L Standards. No constituent was detected exceeding its GCL. 1,2-dichloroethane
was detected in WSW-3 exceeding the 2L Standards but below its GCL.

On November 30, 2018, ECS contracted with Quantex to advance 10 soil borings to collect 20 total soil
samples at depths ranging from 6 to 12 feet bgs for risk-based analysis along the sidewalls of the former
UST location to determine the extent of contaminated soils on the subject site. Laboratory analysis reported
several targeted analytes above their respective Residential and Commercial MSCCs in soil samples SS-
1-B and SS-10-B. Laboratory analysis also reported several targeted analytes above their respective Soil-
to-Water MSCC in soil samples SS-1-A and SS-10-A. ECS recommended the excavation and removal of
the contaminated soil near the locations of soil samples SS-1-A, SS-1-B, SS-10-A, and SS-10-B to a depth
of approximately 15 ft bgs. A Comprehensive Site Assessment (CSA) Report was submitted on February
7, 2019, by ECS.

On June 25, 2019, ECS collected groundwater samples from monitoring wells MW-1 through MW-10, and
water supply well WSW-3. After sampling the monitoring wells, ECS deployed O- SOXs in monitoring wells
MW-1, MW-4R, MW-6, and MW-7. Laboratory analysis of the groundwater sample collected from
monitoring well MW-1 detected 1,2-dibromethane at a concentration above both its 2L Standards and GCL.
Laboratory analysis detected several targeted analytes above their respective 2L Standards but below their
respective GCL in the groundwater water samples collected from monitoring wells MW-1, MW-4R, MW-6,
and MW-7. 1,2-dichloroethane was detected in WSW-3 exceeding the 2L Standards but below its GCL.

On March 4, 2020, ECS collected groundwater samples from monitoring wells MW-1 through MW-10, and
water supply well WSW-3. ECS removed O-SOXs from monitoring wells MW-1, MW-4R, MW-6, and MW-
7 prior to sampling. Laboratory analysis detected several targeted analytes above their respective 2L
Standards in monitoring wells MW-1, MW-4R, MW-6, and MW-7. No constituent was detected exceeding
its GCL. 1,2-dichloroethane was detected in WSW-3 exceeding the 2L Standards but below its GCL. ECS
recommended that the impacted soils located in proximity to MW-1, MW-4R, and the former UST basin be
excavated and removed.

On April 1, 2021, ATC personnel conducted a groundwater sampling event. Groundwater monitoring wells
MW-1, MW-4R, and MW-5 through MW-9 were measured and sampled. Monitoring wells MW-2, MW-3,
and MW-10 could not be located during the sampling event. An obstruction, estimated to be an old
remediation sock, was stuck inside of MW-1, just below the water level. Laboratory analytical results
indicated the presence of petroleum constituents exceeding the 2L Standards in monitoring wells MW-1,
MW-4R, MW-6, and MW-7. No contaminant exceeded its GCL. Laboratory analysis did not detect any
constituents in WSW-4. Based on the results, ATC recommended the excavation and removal of the
impacted soils as documented in the CSA dated February 7, 2019. Prior to the excavation, ATC estimates
that up to 8 to 10 additional direct push boring locations would be necessary to fully delineate the horizontal
and vertical extent of the impacted soils. ATC also recommends continual sampling of the monitoring well
network and water supply wells WSW-3 and WSW-4.

This report presents the results of the May and June 2023 groundwater sampling events.

4.0 GROUNDWATER CHARACTERIZATION

5.1 GROUNDWATER LEVELS

ATC personnel conducted a groundwater sampling event at the site on May 25, 2023. Groundwater level
measurements were recorded from monitoring wells MW-1, MW-4R, and MW-5 through MW-9 on May 25,
2023. Monitoring wells MW-2, MW-3, and MW-10 could not be located during the sampling event. An
obstruction, estimated to be an old remediation sock, was stuck inside of MW-1, just below the water level.
ATC personnel attempted to remove the obstruction; however, attempts were not successful. LNAPL was
not detected during the sampling event. Depth to groundwater measurements ranged from 16.89 feet bgs
in MW-1 to 20.83 feet bgs in MW-9. The groundwater flow direction observed during the event was generally
in the southeasterly direction. A groundwater elevation contour map generated using the May 25, 2023,
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ATC Project No. STL1158601 NCDEQ State Lead Program
elevation data is included as Figure 4. Monitoring well construction details and current and historical
groundwater elevation data are summarized in Table 2. Field parameter data including temperature,
dissolved oxygen, conductivity, pH, and oxygen reduction potential were recorded during the sampling
event and are included in Table 3. Field notes from the May 25, 2023, site visit are included in Appendix
B. Site photographs from the sampling event are included in Appendix C.

5.2 GROUNDWATER QUALITY

5.2.1 Monitoring Wells

On May 25, 2023, groundwater samples were collected from monitoring wells MW-1, MW-4R and MW-5
through MW-9. Monitoring wells MW-2, MW-3, and MW-10 could not be located during the sampling event.
During sampling activities, a three-volume well purge was implemented prior to groundwater sample
collection to ensure collection of a representative groundwater sample. Due to an obstruction in monitoring
well MW-1, the well could not be purged prior to sample collection. ATC personnel attempted to remove
the obstruction; however, attempts were unsuccessful. A field blank was collected on May 25, 2023, as part
of the groundwater sampling event. Samples were collected in laboratory approved containers, packed in
ice and delivered under chain-of-custody protocol to SGS Accutest (SGS) in Scott, Louisiana for analyses.
Groundwater samples were analyzed for volatile organic compounds (VOCs) by Environmental Protection
Agency (EPA) Method 6200B.

Laboratory analytical results indicated the presence of petroleum constituents exceeding the 2L Standards
in monitoring wells MW-1, MW-4R, MW-6, and MW-7. Benzene (1,510 micrograms per liter [µg/L]), toluene
(7,300 µg/L), ethylbenzene (879 µg/L), total xylenes (8,350 µg/L), 1,2-dibromomethane (59.4 µg/L), p-
isotoluene (51.4 µg/L), naphthalene (487 µg/L), n-propylbenzene (134 µg/L), 1,2,4-trimethylbenzene (2,580
µg/L), and 1,3,5 trimethylbenzene (873 µg/L) were detected in MW-1 exceeding the 2L Standards. Benzene
(552 µg/L), total xylenes (519 µg/L), naphthalene (50.5 µg/L), 1,2-dichloroethane (7.0 µg/L), and 1,2,3-
trichloropropane (2.0 µg/L) were detected in MW-4R exceeding the 2L Standards. Benzene (3.4 µg/L) and
1,2-dichloroethane (1.9 µg/L) were detected in MW-6 exceeding the 2L Standards. Benzene (439 µg/L),
naphthalene (35.9 µg/L), and1,2-dichloroethane (40.6 µg/L) were detected in MW-7 exceeding the 2L
Standards. No contaminant exceeded its GCL. Current groundwater analytical data is summarized in Table
4. Historical groundwater analytical data is summarized in Table 5. A dissolved benzene isoconcentration
contour map is included as Figure 5. A map showing additional contaminants of concern is included as
Figure 6. The laboratory analytical report and chain-of-custody forms are included in Appendix D.

A comparison of the current analytical results (May 2023) to the results of the previous sampling event
(April 2021) indicates a decrease in contaminant concentrations in monitoring wells MW-1. However,
concentrations in MW-4R, MW-6 and MW-7 increased since the previous sampling event. Historical
monitoring well analytical results are included in Table 5.

5.2.2 Water Supply Wells

As per the approved TA, ATC proposed to sample water supply wells WSW-3 and WSW-4. ATC had
previously obtained an access agreement in 2021 to sample WSW-4 (1704 Gentry Ridge Road) but an
access agreement had not been obtained for WSW-3 (1540 Gentry Ridge Road). In May 2023, ATC mailed
water supply well access letter, via regular mail and certified mail, to the owners of water supply well WSW-
3. ATC received a signed access agreement from the owner of WSW-3 on May 30, 2023.

On May 25, 2023, a groundwater sample was collected from water supply well WSW-4. Water supply well
WSW-4 was allowed to run for 15 minutes prior to sample collection. Samples were collected in laboratory-
approved containers, packed in ice and delivered under chain of custody protocol to SGS North America
Inc., in Scott, Louisiana for analyses. Groundwater samples were analyzed for volatile organic compounds
(VOCs) by Method 6200B. Toluene and ethyl alcohol were detected in the WSW-4 for the first time but at
concentrations below the 2L Standards.

Barbara Spencer Property
July 31, 2023
Page 9 of 9

ATC Project No. STL1158601 NCDEQ State Lead Program
As per the approval from Wayne Randolph (NCDEQ), ATC personnel remobilized to collect a second
sample from WSW-4 on June 16, 2023. At this time, ATC had also received a signed access agreement
for WSW-3. The signed access letter is included in Appendix E. Both WSW-3 and WSW-4 were allowed
to run for 15 minutes prior to sampling. Samples were collected in laboratory-approved containers, packed
in ice and delivered under chain of custody protocol to SGS North America Inc., in Scott, Louisiana for
analyses. Groundwater samples were analyzed for volatile organic compounds (VOCs) by Method 6200B

Laboratory analysis detected the presence of 1,2 dichloroethane in WSW-3 at a concentration of 1.2 µg/L
that exceeded the 2L Standard but was consistent with historical results. Ethyl alcohol was also detected
in WSW-3 as a “J” value (estimated values below the standard reporting limits) below the 2L Standards.
The re-sampling of WSW-4 only detected ethyl alcohol as a “J” value below the 2L Standards. The presence
of toluene and ethyl alcohol can be attributed to laboratory contaminants and not associated with the site.
Water supply well analytical data is summarized in Table 6. Water supply well ownership information is
included in Table 1. Water supply well locations are depicted in Figure 3.

5.2.3 Quality Assurance and Quality Control

As part of ATC’s quality assurance and quality control (QA and QC) measures, a data review of the
laboratory report was conducted. During the review, it was concluded that samples were received by the
laboratory in acceptable condition and properly preserved. The samples were analyzed within the correct
holding times, and the chain of custody was properly completed by all parties. The laboratory QC report
shows an internal blank was analyzed for each method that was used for the original samples. The
laboratory fortified blank (LFB) and laboratory control sample (LCS) data results were also provided for
each analytical method. Toluene was detected in small amounts in the laboratory blanks and field blank
samples collected as part of the May 25, 2023, sampling event. The presence of toluene was confirmed by
reanalysis. Refer to the laboratory reports in Appendix D for details regarding QA results for the laboratory
samples and any noted exceptions. Overall, ATC concludes that the laboratory results are usable and any
exceptions do not significantly impact the conclusions presented in this report.

6.0 CONCLUSIONS AND RECOMMENDATIONS

On behalf of the Trust Fund Branch of the UST Section, ATC has completed a Federal/State-Lead
Groundwater Monitoring Report (GMR) for the Barbara Spencer site, located approximately 900 feet north
of the intersection of Gentry Ridge Road and Todd Road in Roxboro, Person County, North Carolina.

Groundwater samples were collected from monitoring wells MW-1, MW-4R, and MW-5 through MW-9, as
well as water supply wells WSW-3 and WSW-4. LNAPL was not detected during the May 25, 2023,
sampling event. The groundwater flow direction observed during the event was generally in the
southeasterly direction.

Laboratory analysis indicated the presence of petroleum constituents exceeding the 2L Standards in
monitoring wells MW-1, MW-4R, MW-6, and MW-7. No constituent was detected exceeding its GCL
standard. A comparison of the current analytical results (May 2023) to the results of the previous sampling
event (April 2021) indicates a decrease in contaminant concentrations in monitoring wells MW-1. Laboratory
analysis detected the presence of 1,2 dichloroethane in WSW-3 at a concentration that exceeded the 2L
Standard but was consistent with historical results. Ethyl alcohol was also detected in WSW-3 as a “J” value
and below the 2L Standards. The re-sampling of WSW-4 only detected ethyl alcohol as a “J” value and
below the 2L Standards. The presence of toluene and ethyl alcohol can be attributed to laboratory
contaminants and not associated with the site.

Based on the historical soil assessments and the current groundwater results, it appears that residual
petroleum contaminated soils from the former USTs are contributing to the groundwater impact at the site.
However, the expected depth of the impacted soil and the groundwater table (17 feet to 20 feet bgs)
preclude soil excavation activities. ATC recommends performing a mobile multi-phase extraction (MMPE)
event to recover impacted groundwater from MW-1 and MW-4R. ATC also recommends performing an
Barbara Spencer Property
July 31, 2023
Page 10 of 9

ATC Project No. STL1158601 NCDEQ State Lead Program
updated receptor survey to confirm the risk status for the site. During the receptor survey, ATC will confirm
the status of WSW-1 and obtain an agreement to sample the well if the well is used for drinking water
purposes. ATC will also review the construction details for WSW-3 for possible replacement options.

7.0 LIMITATIONS

This report has been prepared for the exclusive use of the NCDEQ. The opinions included herein are based
on information obtained during the study, on our experience in accordance with currently accepted
hydrogeologic and engineering practices, and relevant regulatory guidelines at this time and location. Other
than this, no warranty is implied or intended.

Barbara Spencer Property

ATC Project No. STL1158601 NCDEQ State Lead Program

TABLES

TABLE 1
WATER SUPPLY WELL INFORMATION
BARBARA SPENCER PROPERTY
GENTRY RIDGE ROAD
ROXBORO, PERSON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #11586
Parcel ID #Well ID#Well Owner / User Property Owner Address Property Address Well Use Connected to
Public Water Well Depth (ft)Distance From Source
Area
0927-00-80-5538 WSW-1 Cody and Sherry Gunter 1733 Gentry Ridge Road
Roxboro, NC 27574
1599 Gentry Ridge Road
Roxboro, NC 27574 Inactive No Unknown 200 ft northwest
0927-00-80-4059 WSW-2 (Shared)Mr. Franklin Gentry 1755 Todd Road
Roxboro, NC 27574 Potable No
0927-00-80-1211 WSW-2 (Shared)Mr. Thomas Puryear 1945 Gentry Ridge Road
Roxboro, NC 27574 Potable No
0927-00-80-7297 WSW-3 Mr. Dougas Jordan 1540 Gentry Ridge Road
Roxboro, NC 27574
1540 Gentry Ridge Road
Roxboro, NC 27574 Potable No Unknown 150 ft south-southeast
0927-00-81-9067 WSW-4 Karl & John Gentry 1704 Gentry Ridge
Roxboro, NC 27574
1704 Gentry Ridge
Roxboro, NC 27574 Potable No Unknown 700 ft north-northeast
Notes:
1. Ownership information obtained via Person County Online GIS Website (June 2023).
1945 Gentry Ridge Road
Roxboro, NC 27574 Unknown 1,100 ft
west-southwest
Page 1 of 1
TABLE 2
WELL CONSTRUCTION AND GROUNDWATER ELEVATION DATA
BARBARA SPENCER PROPERTY
GENTRY RIDGE ROAD
ROXBORO, PERSON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #11586
Monitoring
Well
Date of
Construction
Well
Diameter
(inches)
Total Well
Depth
(feet bgs)
Screen
Interval (feet
bgs)
TOC
Elevation
(feet)
Date
Measured
Depth to
Water
(feet)
Depth to
LNAPL
(feet)
LNAPL
Thickness
(feet)
Groundwater
Elevation
(feet)
6/15/2017 18.22 ----641.68
3/08/2018 17.96 ----641.94
11/29/2018 14.50 ----645.40
6/25/2019 13.84 ----646.06
3/04/2020 13.88 ----646.02
4/1/2021 11.56 ----648.34
5/25/2023 16.89 ----643.01
NM NM ----NA
3/8/2018 19.17 ----637.65
11/29/2018 16.25 ----640.57
6/25/2019 15.07 ----641.75
3/4/2020 15.06 ----641.76
4/1/2021
5/25/2023
NM NM ----NA
3/8/2018 11.64 ----641.83
11/29/2018 9.18 ----644.29
6/25/2019 9.94 ----643.53
3/4/2020 9.60 ----643.87
4/1/2021
5/25/2023
6/15/2017 21.34 ----641.50
3/8/2018 23.62 ----639.22
11/29/2018 18.85 ----643.99
6/25/2019 18.30 ----644.54
3/4/2020 18.16 ----644.68
4/1/2021 16.21 ----646.63
5/25/2023 20.83 ----642.01
6/15/2017 16.18 ----645.54
3/8/2018 19.13 ----642.59
11/29/2018 15.34 ----646.38
6/25/2019 13.74 ----647.98
3/4/2020 14.30 ----647.42
4/1/2021 11.09 ----650.63
5/25/2023 17.34 ----644.38
6/15/2017 16.05 ----642.25
3/8/2018 17.76 ----640.54
11/29/2018 15.42 ----642.88
6/25/2019 14.31 ----643.99
3/4/2020 14.62 ----643.68
4/1/2021 12.07 ----646.23
5/25/2023 17.02 ----641.28
6/15/2017 17.49 ----639.72
3/8/2018 23.40 ----633.81
11/29/2018 18.25 ----638.96
6/25/2019 15.87 ----641.34
3/4/2020 16.95 ----640.26
4/1/2021 14.02 ----643.19
5/25/2023 18.09 ----639.12
6/15/2017 16.54 ----640.25
3/8/2018 18.63 ----638.16
11/29/2018 15.89 ----640.90
6/25/2019 14.64 ----642.15
3/4/2020 15.67 ----641.12
4/1/2021 12.98 ----643.81
5/25/2023 17.27 ----639.52
6/15/2017 21.20 ----635.05
3/8/2018 22.90 ----633.35
11/29/2018 20.11 ----636.14
6/25/2019 17.84 ----638.41
3/4/2020 20.64 ----635.61
4/1/2021 16.84 ----639.41
5/25/2023 20.38 ----635.87
6/15/2017 16.35 ----636.97
3/8/2018 17.60 ----635.72
11/29/2018 16.25 ----637.07
6/25/2019 14.30 ----639.02
3/4/2020 13.75 ----639.57
4/1/2021
5/25/2023
Notes:
1. -- = LNAPL not detected.
2. Groundwater elevation corrected for wells with LNAPL using the following equation: GW Elev. = TOC Elev. - Depth to Water + (0.8581* LNAPL Thickness).
3. LNAPL = light non-aqueous phase liquid.
4. TOC = Top of casing.
5. NM = Not Measured.
6. Survey performed by Bateman Civil Survey on April 15, 2015 and March 18, 2016. The site vertical datum is based on NAV88 and the horizontal datum is based on NAD83.
MW-1 2/09/1995 2 36 16-36 659.90
MW-2 2/9/1995 2 26 11-26 656.82
653.4710-252522/9/1995MW-3
MW-4R 4/14/2015 2 30 20-30 662.84
661.7210-252525/15/2006MW-5
MW-6 4/14/2015 2 30 20-30 658.3
657.2110-252524/14/2015MW-7
MW-8 3/11/2016 2 25 10-25 656.79
656.2510-252523/11/2016MW-9
MW-10 3/11/2016 2 25 10-25 653.32
Could Not Locate
Could Not Locate
Could Not Locate
Could Not Locate
Could Not Locate
Could Not Locate
TABLE 3
NATURAL ATTENUATION PARAMETERS
BARBARA SPENCER PROPERTY
GENTRY RIDGE ROAD
ROXBORO, PERSON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #11586
Monitoring
Well Date
Temperature (oC)Dissolved Oxygen (mg/L)Specific Conductivity (µs/cm)pH (SU)ORP (mV)4/1/2021
5/25/2023
4/1/2021
5/25/2023
4/1/2021
5/25/2023
4/1/2021 13.2 47.52 200.6 6.34 198.5
5/25/2023 17.10 1.79 250 12.48 -35.2
4/1/2021 13.5 8.03 34.8 5.25 156.9
5/25/2023 17.20 4.24 33 10.01 114.9
4/1/2021 16.3 2.25 67.6 5.86 190.4
5/25/2023 16.91 3.94 35 9.84 180.7
4/1/2021 16.5 2.49 71.8 5.95 169.9
5/25/2023 16.31 3.79 76 10.37 151.0
4/1/2021 16.5 3.95 32.6 4.93 201.0
5/25/2023 17.64 4.01 42 8.48 160.3
4/1/2021 17.3 2.17 61.1 5.34 194.3
5/25/2023 16.58 5.58 64 9.64 228.9
4/1/2021
5/25/2023
Notes:
1. oC = Degrees Celsius.
2. mg/L = milligrams per liter.
3. µs/cm = micro Siemens per centimeter.
4. SU = Standard Units.
5. ORP = Oxidation Reduction Potential.
6. mV = Millivolts.
MW-4R
MW-5
No Readings. Obstruction In Well
Could Not Locate
Could Not Locate
Could Not Locate
MW-1 No readings - sheen/strong odor
MW-2 Could Not Locate
MW-3 Could Not Locate
MW-6
MW-7
MW-8
MW-9
MW-10 Could Not Locate
Page 1 of 1
TABLE 4
GROUNDWATER ANALYTICAL RESULTS
BARBARA SPENCER PROPERTY
GENTRY RIDGE ROAD
ROXBORO, PERSON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #11586
Sample
ID Sample Date
BenzeneTolueneEthylbenzeneTotal Xylenesn-Butylbenzenesec-Butylbenzene1,2 Dichloroethane1,2 Dibromoethane (EDB)1,2- DichloropropaneDiisoprophyl EtherIsopropylbenzenep-IsopropytolueneMethylene ChlorideMethyl Butyl Ketone (2-Hexanone)Methyl-tert-butyl EtherNaphthalenen-PropylbenzeneStyrene1,2,3-Trichloropropane1,2,4 Trimethylbenzene1,3,5 TrimethylbenzeneMW-1 5/25/2023 1,510 7,300 879 8,350 <50 <50 <20 59.4 <30 38.9J 54.6 51.4 <50 <100 <50 487 134 15.4J <50 2,580 873
MW-4R 5/25/2023 552 91.9 124 519 <0.50 1.5 7.0 <0.50 0.37 13.9 8.4 0.74 <0.50 1.4 <0.50 50.5 23.3 <0.50 2.0 108 39.6
MW-5 5/25/2023 <0.50 0.55 <0.50 <0.50 <0.50 <0.50 <0.20 <0.50 <0.30 <0.50 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
MW-6 5/25/2023 3.4 0.63 <0.50 0.59 <0.50 <0.50 1.9 <0.50 <0.30 0.21J <0.50 <0.50 <0.50 <1.0 <0.50 0.21J <0.50 <0.50 <0.50 <0.50 <0.50
MW-7 5/25/2023 439 <2.5 <2.5 7.4 0.86J <2.5 40.6 <2.5 <1.5 36.7 6.9 <2.5 0.63J <5.0 2.7 35.9 <2.5 <2.5 <2.5 6.6 <2.5
MW-8 5/25/2023 <0.50 0.65 <0.50 <0.50 <0.50 <0.5 <0.20 <0.50 <0.30 <0.50 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
MW-9 5/25/2023 <0.50 0.64 <0.50 <0.50 <0.50 <0.50 <0.20 <0.50 <0.30 <0.50 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
1 600 600 500 70 70 0.4 0.02 0.6 70 70 25 400 40 20 6 70 70 0.005 400 400
5,000 260,000 80,000 50,000 5,900 8,800 400 50 600 70,000 30,500 11,700 400,000 40,000 20,000 6,000 26,100 70,000 NE 28,500 24,100
Notes:
1. "<", ND = Not detected at or above the laboratory reporting limit.
2. Concentrations are reported in micrograms per liter (ug/l) = parts per billion (ppb).
3. Concentrations in bold equal or exceed the corresponding NCDEQ Groundwater Quality 2L Standard (2L Standard).
4. Concentrations in italic equal or exceed the corresponding Gross Contamination Limit (GCL).
5. NR = Not reported in historical tables.
6. NA = Not Analyzed.
7. NS = Not Sampled.
8. LNAPL = light non-aqueous phase liquid.
9. J = Concentration detected below reporting limit.
2L Standards
GCL
Page 1 of 1
TABLE 5
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
BARBARA SPENCER PROPERTY
GENTRY RIDGE ROAD
ROXBORO, PERSON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #11586
Sample
ID Sample Date
BenzeneTolueneEthylbenzeneTotal Xylenesn-Butylbenzenesec-Butylbenzene1,2 Dichloroethane1,2 Dibromoethane (EDB)1,2- DichloropropaneDiisoprophyl EtherIsopropylbenzenep-IsopropytolueneMethyl ChlorideNaphthalenen-Propylbenzene1,1,1, Trichloroethane1,2,4 Trimethylbenzene1,3,5 Trimethylbenzene1,2,3-Trichloropropane5/15/2006 720 3,700 920 11,000 ND 70 ND ND ND ND 86 87 ND 660 240 ND 1,900 590 ND
1/17/2008 35 38 4 29 ND ND ND 5 ND 18 ND 1 ND ND 1 ND 6 9 ND
7/10/2009 3,300 17,000 1,800 12,700 ND ND ND ND ND ND ND ND ND ND 280 ND 2,300 620 ND
10/31/2012 1,000 4,400 1,100 6,900 72 ND ND ND ND ND 75 ND ND 280 240 ND 2,000 570 ND
8/22/2014 2,630 11,300 1,660 10,240 ND ND ND 90.8 ND 71.8 92.5 ND ND 676 241 288 2,170 486 ND
4/14/2015 2,700 13,200 ND 11,060 ND ND ND 111 ND 83.3 102 ND ND 605 266 ND 2,440 701 ND
3/11/2016 4,000 21,000 2,400 16,000 ND ND ND 160 ND 110 130 ND ND 890 330 ND 3,100 880 ND
12/5/2016 2,460 9,220 2,130 13,100 28.9 J ND 28.6 J 78.3 J ND 49.5 J 128 ND 961 728 360 ND 2,940 777 ND
6/15/2017 4,010 23,600 1,700 13,980 ND ND ND 160 ND 103 ND ND ND 832 ND ND 2,640 ND ND
3/8/2018 260 510 760 7,200 100 18 ND 8.8 J ND 12 J 69 9.8 J ND 330 200 ND 2,200 690 ND
11/29/2018 1,220 6,210 884 7,780 ND ND ND 47.7 ND 34.3 65.6 ND ND 516 ND ND 2,080 639 ND
6/25/2019 3,600 22,000 1,800 15,300 ND ND ND 120 ND 98 J 92 J ND ND 2,200 190 ND 2,800 820 ND
3/4/2020 1,100 6,200 1,200 10,200 72 20 J ND 49 ND 29 78 14 J ND 410 200 ND 2,700 800 ND
4/1/2021 3,250 26,600 2,160 19,400 <250 <250 <100 <250 <150 <250 <250 <250 <250 866 <250 <250 3,300 875 ND
4/1/2021 3,250 26,600 2,160 19,400 <250 <250 <100 <250 <150 <250 <250 <250 <250 866 <250 <250 3,300 875
5/25/2023 1,510 7,300 879 8,350 <50 <50 <20 59.4 <30 38.9J 54.6 51.4 <50 487 134 <50 2,580 873 <50
5/15/2006 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1 ND ND
1/17/2008 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
7/10/2009 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
10/31/2012 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
8/22/2014
4/14/2015 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3/11/2016 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
12/5/2016 ND ND ND ND ND ND ND ND ND ND ND ND 0.31 J ND ND ND ND ND ND
6/15/2017
3/8/2018 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
11/29/2018 ND ND ND ND ND ND ND ND ND bb ND ND ND ND ND ND ND ND ND
6/25/2019 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3/4/2020 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
4/1/2021
5/25/2023
5/15/2006 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1 ND ND
1/17/2008 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
7/10/2009 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
10/31/2012 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
8/22/2014
4/14/2015 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3/11/2016 4.6 27 3 16 ND ND ND ND ND ND ND ND ND ND ND ND 1.7 0.55 ND
12/5/2016 ND ND ND ND ND ND ND ND ND ND ND ND 4.1 ND ND ND ND ND ND
6/15/2017
3/8/2018 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
11/29/2018 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
6/25/2019 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3/4/2020 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
4/1/2021
5/25/2023
5/15/2006 ND 4,600 360 2,290 ND 12 220 91 ND 93 33 9 ND 260 77 ND 600 150 ND
1/17/2008 360 4,000 1,000 6,600 ND ND ND ND ND ND ND 9 ND ND ND ND 1900 540 ND
7/7/2009 770 430 68 440 4 2 ND 41 ND 26 4 6 ND 29 12 ND 120 35 ND
10/31/2012 6,400 3,300 570 3,300 ND ND 250 110 ND 180 ND ND ND 130 65 ND 550 130 ND
8/22/2014
4/15/2015 1,490 1,410 313 1,927 ND ND 51.5 16.7 0.97 64.2 27.5 ND ND 120 61 ND 426 119 ND
3/11/2016 25 0.84 2.1 21 ND ND ND ND ND 1.5 ND ND ND 0.98J ND ND 4 1.4 ND
12/5/2016 6,770 6,830 1,160 6,890 ND ND 151 60.8 J ND 191 60.1 J ND ND 330 165 ND 1,290 333 ND
6/15/2017 2,130 2,250 310 2,242 ND ND 68.3 33.8 ND 99.3 13.7 ND ND 95 ND ND 370 ND ND
3/8/2018 3,100 1,400 380 2,900 14 J ND 76 20 J ND 84 24 J ND ND 140 44 ND 300 150 ND
11/29/2018 1,130 448 120 663 ND ND 34.9 8.4 ND 56.8 8 ND ND 41.3 ND ND 99.3 ND ND
6/25/2019 3,200 970 450 3,600 ND ND 82 34 ND 110 33 ND ND 330 64 ND 540 220 ND
3/4/2020 1,900 2,000 440 2,290 ND ND ND 14 J ND 62 22 J ND ND 30 56 ND 380 120 ND
4/1/2021 22.3 9.7 5.4 29.9 <0.50 <0.50 0.8 <0.50 <0.30 1 <0.50 <0.50 <0.50 0.96 0.71 <0.50 4.6 1.6 <0.50
5/25/2023 552 91.9 124 519 <0.50 1.5 7.0 <0.50 0.37 13.9 8.4 0.74 <0.50 50.5 23.3 <0.50 108 39.6 2.05/15/2006 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
1/17/2008 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
7/10/2009 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
10/31/2012 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
8/22/2014 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
4/14/2015 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3/14/2016 ND ND ND ND ND ND 1.7 ND ND ND ND ND ND ND ND ND ND ND ND
12/5/2016 ND ND ND ND ND ND ND ND ND ND ND ND 8.0 ND ND ND ND ND ND
6/15/2017 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3/8/2018 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
11/29/2018 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
6/25/2019 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3/4/2020 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
4/1/2021 <0.50 <3.0 <0.50 <0.50 <0.50 <0.50 <0.20 <0.50 <0.30 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/25/2023 <0.50 0.55 <0.50 <0.50 <0.50 <0.50 <0.20 <0.50 <0.30 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
1 600 600 500 70 70 0.4 0.02 0.6 70 70 25 3 6 70 200 400 400 0.005
5,000 260,000 80,000 50,000 5,900 8,800 400 50 600 70,000 30,500 11,700 3,000 6,000 26,100 200,000 28,500 24,100 NE
Notes:
1. "<", ND = Not detected at or above the laboratory reporting limit.
2. Concentrations are reported in micrograms per liter (ug/l) = parts per billion (ppb).
3. Concentrations in bold equal or exceed the corresponding NCDEQ Groundwater Quality 2L Standard (2L Standard).
4. Concentrations in italic equal or exceed the corresponding Gross Contamination Limit (GCL).
5. NR = Not reported in historical tables.
6. NA = Not Analyzed.
7. NS = Not Sampled.
8. LNAPL = light non-aqueous phase liquid.
9. J = Concentration detected below reporting limit.
Could Not Locate
Could Not Locate
Could Not Locate
Could Not Locate
Could Not Locate
Could Not Locate
Could Not Locate
Could Not Locate
MW-4R
MW-5
2L Standards
GCL
MW-3
MW-4
Monitoring Well Destroyed
MW-1
MW-2
Page 1 of 2
TABLE 5
HISTORICAL GROUNDWATER ANALYTICAL RESULTS
BARBARA SPENCER PROPERTY
GENTRY RIDGE ROAD
ROXBORO, PERSON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #11586
Sample
ID Sample Date
BenzeneTolueneEthylbenzeneTotal Xylenesn-Butylbenzenesec-Butylbenzene1,2 Dichloroethane1,2 Dibromoethane (EDB)1,2- DichloropropaneDiisoprophyl EtherIsopropylbenzenep-IsopropytolueneMethyl ChlorideNaphthalenen-Propylbenzene1,1,1, Trichloroethane1,2,4 Trimethylbenzene1,3,5 Trimethylbenzene1,2,3-Trichloropropane4/15/2015 172 ND 1.1 11.6 ND ND 14.8 ND ND 5.7 1.1 ND ND 6.1 ND ND 8.9 1.8 ND
3/11/2016 1.8 ND ND ND ND ND 3.6 ND ND ND ND ND ND ND ND ND ND ND ND
12/5/2016 14.8 ND ND 2 ND ND 5.8 ND ND 0.85 ND ND 11.6 0.74 ND ND 0.29 J ND ND
6/15/2017 12.3 ND ND 1.5 ND ND 5.5 ND ND 1.1 ND ND ND ND ND ND 0.75 ND ND
3/8/2018 57 ND ND 2.1 ND ND 19 ND 0.16 J 8.3 0.47 J ND ND 4 0.13 J ND 3.1 .76 J ND
11/29/2018 28.6 ND ND 3.3 ND ND 9.3 ND ND 3.1 ND ND ND ND ND ND 1 ND ND
6/25/2019 12 ND ND 1.6 ND ND 5 ND ND 0.98 ND ND ND ND ND ND 0.40 J ND ND
3/4/2020 24 ND ND 2.8 ND ND 5.9 ND ND 1.3 0.25 J ND ND ND ND ND 1.1 ND ND
4/1/2021 <0.50 <3.0 <0.50 <0.50 <0.50 <0.50 1.2 <0.50 <0.30 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/25/2023 3.4 0.63 <0.50 0.59 <0.50 <0.50 1.9 <0.50 <0.30 0.21J <0.50 <0.50 <0.50 0.21J <0.50 <0.50 <0.50 <0.50 <0.50
4/15/2015 583 ND ND 7.9 ND 0.65 32 ND ND 18.1 5.1 ND ND 22.7 ND ND 20.1 ND ND
3/11/2016 770 ND ND 5.5J 0.96 0.95 42 ND ND 23 6.5 ND ND 37 ND ND 21 ND ND
12/5/2016 876 ND ND 6.7 J ND ND 49.6 ND ND 29.5 6.7 J ND ND 35.9 ND ND 23.1 ND ND
6/15/2017 599 ND ND 4.5 ND ND 37.8 ND ND 25 4.6 ND ND 23.6 ND ND 17.3 ND ND
3/8/2018 140 ND ND ND ND ND 28 ND ND 18 0.8 J ND ND 14 ND ND 2.9 J ND ND
11/29/2018 105 ND ND 0.84 ND ND 16.6 ND ND 10.1 1.5 ND ND 7.2 ND ND 3.9 ND ND
6/25/2019 330 ND ND 5.04 J 0.65 0.78 36 ND 0.20 J 24 5.8 ND ND 17 0.20 J ND 12 ND ND
3/4/2020 91 ND ND 0.95 ND 0.21 J 18 ND ND ND 1.8 ND ND 4.5 ND ND 2.2 ND ND
4/1/2021 162 <3.0 <0.50 2.7 <0.50 <0.50 26.2 <0.50 <0.30 20.2 3.5 <0.50 <0.50 17.3 <0.50 <0.50 4.8 <0.50 <0.50
5/25/2023 439 <2.5 <2.5 7.4 0.86J <2.5 40.6 <2.5 <1.5 36.7 6.9 <2.5 <2.5 35.9 <2.5 <2.5 6.6 <2.5 <2.5
3/14/2016 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
12/5/2016 ND ND ND ND ND ND 0.18 J ND ND ND ND ND 0.78 ND ND ND ND ND ND
6/15/2017 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3/8/2018 ND ND ND ND ND ND 0.32 J ND ND ND ND ND ND ND ND ND ND ND ND
11/29/2018 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
6/25/2019 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3/4/2020 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
4/1/2021 <0.50 <3.0 <0.50 <0.50 <0.50 <0.50 <0.20 <0.50 <0.30 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/25/2023 <0.50 0.65 <0.50 <0.50 <0.50 <0.5 <0.20 <0.50 <0.30 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
3/14/2016 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
12/5/2016 ND ND ND ND ND ND 0.16 J ND ND ND ND ND 4.2 ND ND ND ND ND ND
6/15/2017 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3/8/2018 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
11/29/2018 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
6/25/2019 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3/4/2020 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
4/1/2021 <0.50 <3.0 <0.50 <0.50 <0.50 <0.50 <0.20 <0.50 <0.30 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
5/25/2023 <0.50 0.64 <0.50 <0.50 <0.50 <0.50 <0.20 <0.50 <0.30 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50
3/14/2016 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
12/5/2016 ND ND ND ND ND ND ND ND ND ND ND ND 0.23 J ND ND ND ND ND ND
6/15/2017 ND ND ND ND ND ND ND ND ND ND ND ND 1.7 ND ND ND ND ND ND
3/8/2018 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
11/29/2018 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
6/25/2019 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3/4/2020 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
4/1/2021
5/25/2023
1 600 600 500 70 70 0.4 0.02 0.6 70 70 25 3 6 70 200 400 400 0.005
5,000 260,000 80,000 50,000 5,900 8,800 400 50 600 70,000 30,500 11,700 3,000 6,000 26,100 200,000 28,500 24,100 NE
Notes:
1. "<", ND = Not detected at or above the laboratory detection limit.
2. Concentrations are reported in micrograms per liter (ug/l) = parts per billion (ppb).
3. Concentrations in bold equal or exceed the corresponding NCDEQ Groundwater Quality 2L Standard (2L Standard).
4. Concentrations in italic equal or exceed the corresponding Gross Contamination Limit (GCL).
5. NR = Not reported in historical tables.
6. NA = Not Analyzed.
7. NS = Not Sampled.
8. LNAPL = light non-aqueous phase liquid.
9. J = Concentration detected below reporting limit.
GCL
Could Not Locate
Could Not Locate
MW-8
MW-9
MW-10
2L Standards
MW-6
MW-7
Page 2 of 2
TABLE 6
HISTORICAL WATER SUPPLY WELL ANALYTICAL RESULTS
BARBARA SPENCER PROPERTY
GENTRY RIDGE ROAD
ROXBORO, PERSON COUNTY, NORTH CAROLINA
NCDEQ INCIDENT #11586
Sample
ID Sample Date
BenzeneTolueneEthylbenzeneTotal XylenesAcetonen-Butylbenzenesec-Butylbenzenetert-ButylbenzeneChloroformo-Chlorotoluene1,4-Dichlorobenzene (p-Dichlorobenzene)1,2 Dichloroethane1,2 Dibromoethane (EDB)1,2- DichloropropaneDiisoprophyl EtherEthyl AlcoholIsopropylbenzenep-IsopropytolueneMethyl ChlorideMethyl Butyl Ketone (2-Hexanone)Methyl Ethyl Ketone Methyl-tert-butyl EtherNaphthalenen-Propylbenzene1,1,1, Trichloroethane1,2,4 Trimethylbenzene1,3,5 Trimethylbenzene5/15/2006 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
1/17/2008 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
7/10/2009 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
10/31/2012 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
5/15/2006 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
1/17/2008 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
7/10/2009 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
10/31/2012 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
8/22/2014 ND ND ND ND ND ND ND ND ND ND 1.1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
4/14/2015 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
5/15/2006 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1 ND
1/17/2008 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
7/10/2009 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
10/31/2012 ND ND ND ND ND ND ND ND ND ND ND 0.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
8/22/2014 ND ND ND ND ND ND ND ND ND ND ND 0.99 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
4/14/2015 ND ND ND ND ND ND ND ND ND ND ND 0.81 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3/14/2016 ND ND ND ND ND ND ND ND ND ND ND 1.4 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
12/5/2016 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.28 J ND ND ND ND ND ND ND ND
6/15/2017 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3/8/2018 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
11/29/2018 ND ND ND ND ND ND ND ND ND ND ND 1.2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
6/25/2019 ND ND ND ND ND ND ND ND ND ND ND 1.7 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
3/4/2020 ND ND ND ND ND ND ND ND ND ND ND 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
6/16/2023 ND ND ND ND ND ND ND ND ND ND ND 1.2 ND ND ND 10.1 J ND ND ND ND ND ND ND ND ND ND ND
4/1/2021 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
5/25/2023 ND 0.61 ND ND ND ND ND ND ND ND ND ND ND ND ND 23.2 J ND ND ND ND ND ND ND ND ND ND ND
6/16/2023 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 8.6 J ND ND ND ND ND ND ND ND ND ND ND
1 600 600 500 6,000 70 70 70 70 100 6 0.4 0.02 0.6 70 4,000 70 25 3 40 4,000 20 6 70 200 400 400
5,000 260,000 80,000 50,000 6,000,000 5,900 8,800 14,750 70,000 NE 405 400 50 600 70,000 4,000,000 30,500 11,700 3,000 40,000 4,000,000 20,000 6,000 26,100 200,000 28,500 24,100
Notes:
1. "<", ND = Not detected at or above the laboratory reporting limit.
2. Concentrations are reported in micrograms per liter (ug/l) = parts per billion (ppb).
3. Concentrations in bold equal or exceed the corresponding NCDEQ Groundwater Quality 2L Standard (2L Standard).
4. Concentrations in italic equal or exceed the corresponding Gross Contamination Limit (GCL).
WSW-2
2L Standards
GCL
WSW-1
WSW-3
WSW-4
Page 1 of 1
Barbara Spencer Property

ATC Project No. STL1158601 NCDEQ State Lead Program

FIGURES

CAD FILE PREP. BY REV. BY SCALE PROJECT NO.
TITLE
DATE
GEOTECHNICALENVIRONMENTAL
MATERIALS TESTINGBUILDING SCIENCES(919) 871-0999 FAX [phone]
Raleigh, North Carolina 27604
2725 E. Millbrook Road, Suite 121
SITE
MW-10MW-2MW-6MW-9MW-8PROPERTY BOUNDARYMW-7MW-1MW-4RMW-5FORMERUSTLOCATIONSGENTRY RIDGE ROAD
CAD FILE PREP. BYTYPE CODE REV. BY SCALE PROJECT NO.
TITLE
DATE
NOTES:
GEOTECHNICALENVIRONMENTAL
MATERIALS TESTINGBUILDING SCIENCES2725 E. Millbrook Road, Suite 121
[phone] FAX [phone]
Raleigh, North Carolina 27604
MW-10
MW-2MW-6MW-9MW-8PROPERTY BOUNDARYMW-7MW-1MW-5FORMERUSTLOCATIONSGENTRY RIDGE ROAD= GROUNDWATER ELEVATION IN FEET= MONITORING WELL LOCATION= GROUNDWATER ELEVATION CONTOUR
= GROUNDWATER FLOW DIRECTION 82.87(DASHED WHERE INFERRED)1. GROUNDWATER ELEVATION MEASURED 05/25/2023643.01NL639.52644.0643.5643.0642.5642.0641.5641.0640.5640.0639.5
639.0
638.5
638.0
637.5
637.0
636.5
636.0= NOT LOCATEDNLNL639.12641.28635.87644.38642.01MW-4R
MW-10
MW-2MW-6MW-9MW-8PROPERTY BOUNDARYMW-7MW-1MW-4RMW-5FORMERUSTLOCATIONSGENTRY RIDGE ROAD= BENZENE CONCENTRATION IN µg/L= MONITORING WELL LOCATION= BENZENE ISOCONCENTRATION CONTOUR 82.87(DASHED WHERE INFERRED)1. GROUNDWATER SAMPLES TAKEN 05/25/2023<0.50<0.50NA439
3.4NA5521,510<0.501,000100101= NOT ANALYZEDNA
MW-10
MW-2MW-6MW-9MW-8PROPERTY BOUNDARYMW-7MW-1MW-4RMW-5FORMERUSTLOCATIONSGENTRY RIDGE ROADNANA= MONITORING WELL LOCATION1. GROUNDWATER SAMPLES TAKEN 05/25/2023= NOT ANALYZEDNA
Barbara Spencer Property

ATC Project No. STL1158601 NCDEQ State Lead Program

APPENDIX A
CONCEPTUAL SITE MODEL

Site Name: Barbara Spencer Date:7/31/2023
Property Owner:Cody and Sherry Gunter Last Field Event Date:6/16/2023
Site Name: Barbara Spencer Release Discovery Date:12/1/1993
NCDEQ UST Incident No.: 11586 Source of Release:Unknown
Facility ID No.: Unknown Estimated Volume of Release:Unknown
Risk Classification: H265D
Risk Rank: High Gasoline (leaded)No
Site Address: Gentry Ridge Road Gasoline (unleaded)Yes
Site City, ST ZIP:Roxboro, 27574 Gasoline (ethanol blend)No
Site County:Person Diesel No
NCDEQ Regional Office:RRO Kerosene Yes
Active UST Facility:No Heating Oil (#2)No
USTs Present:None Heating Oil (>#2)No
Motor Oil No
Hydraulic Oil No
Major Soil Type:Sandy silt to sandy clay Used Oil No
Surface Cover over impacted soil:Soil
Utilities within plume (Y/N/U):Unknown
>S-W MSCCs (Y/N/U):Unknown
>Residential MSCCs (Y/N/U):Unknown Site (Current):Vacant
>Comm/Ind MSCCs (Y/N/U):Unknown Site (Future):Unknown
North Adjacent:Residential
East Adjacent:Agricultural
Litho-Tectonic Zone Raleigh Belt of the Piedmont
Physiographic Region.South Adjacent:Residential
Geologic Formation
Chapel Hill, Chatham, Farrington,
Meadow Flats, Mt. Moriah, Parks
Crossroads plutons, Roxboro and Vance
County Suites
West Adjacent:Residential and agricultural
Rock Type Foliated to massive granitic rock
Depth to Bedrock (ft bgs)Unknown Municipal Water (Y/N/U):No
Active Potable Wells <1000 ft (#/U):2
Active Potable Wells <500 ft (#/U):1
Depth to water (ft-bgs)18.87 Impacted Wells (Y/N/U):N
Gradient (ft/ft):0.011 Any wells <250 ft (Y/N/U):Yes, WSW-3
Direction (N E S W combo):Southeast
Hydraulic Conductivity (ft/day):Unknown <500 ft (Y/N):Yes
Total Porosity (%):Unknown Type of Surface Water:Pond
Effective Porosity (%):Unknown Name of Nearest Stream:Mayo Creek
Flow Rate (ft/year):Unknown Stream Classification:Class V
COCs >2L (Y/N/U):Yes Impacted Surface Water (Y/N/U):Unknown
COCs >2L Extent Defined (Y/N):No
COCs >GCLs (Y/N/U):No
COCs >GCLs (Wells):No >LEL in Structures:Unknown
COCs >GCLs Extent Defined (Y/N):Yes Vapors in Buildings:Unknown
COCs >2B Standards by 10X (Y/N/U):No Slab-on-grade or Crawlspace:Unknown
LNAPL (Y/N/U):No Dissolved VOCs <5 ft of Structures:Yes
LNAPL (Max Thickness ft):N/A LNAPL <15 ft of Structures:No
LNAPL (Wells):N/A Basement <30 ft of Dissolved COCs:N/A
LNAPL Extent Defined (Y/N):N/A
LNAPL (<5 ft beneath buildings/U):N/A
Utilities within plume (Y/N/U):N/A
Alternative Water Source:NA
NORP:Yes
Site Remediation:NA
Soil Excavation:NA
AFVR:NA
MMPE:Yes
SVE/AS:NA
Other:
CONCEPTUAL SITE MODEL
Soil Information
Possible Path(s) to Closure
Site Information Release Information
Petroleum Type Released
Geologic Information
Groundwater Information
Comments:
Receptor Information
Water Supply
Vapor
Additional Support Documentation Available / Data Gaps:
Approach (general discussion):VOC reduction, confirm site risk
Surface Water
Land Use / Zoning
Reduce VOCs, confirm site risk with update receptor survey
Page 1 of 1
Barbara Spencer Property

ATC Project No. STL1158601 NCDEQ State Lead Program

FIELD NOTES
APPENDIX B
Barbara Spencer Property

ATC Project No. STL1158601 NCDEQ State Lead Program

APPENDIX C

SITE PHOTOGRAPHS

Photo 1: Site status Photo 2: Site status from the approximate southwest corner facing north.
Site Photographs

Barbara Spencer- Incident #11586

Gentry Ridge Road
Roxboro, Person County, North Carolina

2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina
Tel: [phone] Fax: [phone]
Photos Taken By: Brad Byers Site ID: Incident #11586 ATC Project No.: STL1158601

Photo 3: Heavy vegetation in the approximate location of the former UST. Photo 4: Additional view of heavy vegetation in the approximate location of the
former USTs.
Site Photographs

Barbara Spencer- Incident #11586

Gentry Ridge Road
Roxboro, Person County, North Carolina

2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina
Tel: [phone] Fax: [phone]
Photos Taken By: Brad Byers Site ID: Incident #11586 ATC Project No.: STL1158601

Photo 5: View of MW-1 Photo 6: View of MW-4R
Site Photographs

Barbara Spencer- Incident #11586

Gentry Ridge Road
Roxboro, Person County, North Carolina

2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina
Tel: [phone] Fax: [phone]
Photos Taken By: Brad Byers Site ID: Incident #11586 ATC Project No.: STL1158601

Photo 7: View of MW-5. Photo 8: View of MW-6
Site Photographs

Barbara Spencer- Incident #11586

Gentry Ridge Road
Roxboro, Person County, North Carolina

2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina
Tel: [phone] Fax: [phone]
Photos Taken By: Brad Byers Site ID: Incident #11586 ATC Project No.: STL1158601

Photo 9: View of MW-7. Photo 10: View of MW-8.
Site Photographs

Barbara Spencer- Incident #11586

Gentry Ridge Road
Roxboro, Person County, North Carolina

2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina
Tel: [phone] Fax: [phone]
Photos Taken By: Brad Byers Site ID: Incident #11586 ATC Project No.: STL1158601

Photo 11: View of MW-9.
Site Photographs

Barbara Spencer- Incident #11586

Gentry Ridge Road
Roxboro, Person County, North Carolina

2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina
Tel: [phone] Fax: [phone]
Photos Taken By: Brad Byers Site ID: Incident #11586 ATC Project No.: STL1158601
Barbara Spencer Property

ATC Project No. STL1158601 NCDEQ State Lead Program

LABORATORY ANALYTICAL RESULTS
APPENDIX D
06/08/23
Technical Report for
Atlas
Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
SLC1158601
SGS Job Number: LA91046
Sampling Date: 05/25/23
Report to:
ATC Group Services LLC.
2725 East Millbrook Road Suite 121
Raleigh, NC 27604
[e-mail]
ATTN: Gabe Araos
Total number of pages in report:
Certifications: LDEQ(2048), LDHH(LA150012), AR(14-045-04), AZ(AZ0805), FL(E87657), IL(200082), KY(#31),
NC(487), SC(73004001), NJ(LA007), TX(T104704186-18-16), WV(257)
This report shall not be reproduced, except in its entirety, without the written approval of SGS.
Test results relate only to samples analyzed.
SGS North America Inc. • 500 Ambassador Caffery • Scott, LA 70583 • tel: [phone]
Test results contained within this data package meet the requirements
of the National Environmental Laboratory Accreditation Program
and/or state specific certification programs as applicable.
Client Service contact: Rebecca Hebert 337-237-4775
Kesavalu Bagawandoss
General Manager
Scott, LA 06/08/23
e-Hardcopy 2.0
Automated Report
64
SGS is the sole authority for authorizing edits or modifications to this document.
Unauthorized modification of this report is strictly prohibited.
Review standard terms at: http://www.sgs.com/en/terms-and-conditions
The results set forth herein are provided by SGS North America Inc.
Please share your ideas about
how we can serve you better at:
[e-mail]
1 of 64
LA91046
Table of Contents
-1-
Sections:
Section 1: Sample Summary ...................................................................................................3
Section 2: Summary of Hits ....................................................................................................4
Section 3: Sample Results ........................................................................................................7
3.1: LA91046-1: MW-1 .......................................................................................................8
3.2: LA91046-2: MW-4R ....................................................................................................11
3.3: LA91046-3: MW-5 .......................................................................................................14
3.4: LA91046-4: MW-6 .......................................................................................................17
3.5: LA91046-5: MW-7 .......................................................................................................20
3.6: LA91046-6: MW-8 .......................................................................................................23
3.7: LA91046-7: MW-9 .......................................................................................................26
3.8: LA91046-8: WSW4 ......................................................................................................29
3.9: LA91046-9: FIELD BLANK ........................................................................................32
3.10: LA91046-10: TRIP BLANK ......................................................................................35
Section 4: Misc. Forms ............................................................................................................38
4.1: Chain of Custody ...........................................................................................................39
Section 5: MS Volatiles - QC Data Summaries .....................................................................43
5.1: Method Blank Summary ................................................................................................44
5.2: Blank Spike/Blank Spike Duplicate Summary ..............................................................51
5.3: Matrix Spike/Matrix Spike Duplicate Summary ...........................................................58 123452 of 64
LA91046
SGS North America Inc.
Sample Summary
Atlas
Job No:LA91046
Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Project No: SLC1158601
Sample Collected Matrix Client
Number Date Time By Received Code Type Sample ID
This report contains results reported as ND = Not detected. The following applies:
Organics ND = Not detected above the MDL
LA91046-1 05/25/23 14:35 BB 06/01/23 AQ Ground Water MW-1
LA91046-2 05/25/23 15:15 BB 06/01/23 AQ Ground Water MW-4R
LA91046-3 05/25/23 13:50 BB 06/01/23 AQ Ground Water MW-5
LA91046-4 05/25/23 12:00 BB 06/01/23 AQ Ground Water MW-6
LA91046-5 05/25/23 13:00 BB 06/01/23 AQ Ground Water MW-7
LA91046-6 05/25/23 11:35 BB 06/01/23 AQ Ground Water MW-8
LA91046-7 05/25/23 12:30 BB 06/01/23 AQ Ground Water MW-9
LA91046-8 05/25/23 16:05 BB 06/01/23 AQ Ground Water WSW4
LA91046-9 05/25/23 14:40 BB 06/01/23 AQ Field Blank Water FIELD BLANK
LA91046-10 05/25/23 00:00 BB 06/01/23 AQ Trip Blank Water TRIP BLANK
3 of 64
LA910461
Summary of Hits Page 1 of 3
Job Number:LA91046
Account:Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Collected:05/25/23
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
LA91046-1 MW-1
Benzene 1510 50 27 ug/l SM 6200B
1,2-Dibromoethane 59.4 50 24 ug/l SM 6200B
Di-Isopropyl Ether 38.9 J 50 7.3 ug/l SM 6200B
Ethylbenzene 879 50 20 ug/l SM 6200B
Isopropylbenzene 54.6 50 13 ug/l SM 6200B
p-Isopropyltoluene 51.4 50 13 ug/l SM 6200B
Naphthalene 487 50 10 ug/l SM 6200B
n-Propylbenzene 134 50 22 ug/l SM 6200B
Styrene 15.4 J 50 13 ug/l SM 6200B
Toluene 7300 50 29 ug/l SM 6200B
1,2,4-Trimethylbenzene 2580 50 15 ug/l SM 6200B
1,3,5-Trimethylbenzene 873 50 16 ug/l SM 6200B
m,p-Xylene 5430 100 34 ug/l SM 6200B
o-Xylene 2930 50 15 ug/l SM 6200B
Xylene (total)8350 50 16 ug/l SM 6200B
LA91046-2 MW-4R
Benzene 552 5.0 2.7 ug/l SM 6200B
sec-Butylbenzene 1.5 0.50 0.14 ug/l SM 6200B
1,2-Dichloroethane 7.0 0.20 0.12 ug/l SM 6200B
1,2-Dichloropropane 0.37 0.30 0.13 ug/l SM 6200B
Di-Isopropyl Ether 13.9 0.50 0.073 ug/l SM 6200B
Ethylbenzene 124 5.0 2.0 ug/l SM 6200B
2-Hexanone 1.4 1.0 0.42 ug/l SM 6200B
Isopropylbenzene 8.4 0.50 0.13 ug/l SM 6200B
p-Isopropyltoluene 0.74 0.50 0.13 ug/l SM 6200B
Naphthalene 50.5 0.50 0.10 ug/l SM 6200B
n-Propylbenzene 23.3 0.50 0.22 ug/l SM 6200B
Toluene 91.9 0.50 0.29 ug/l SM 6200B
1,2,3-Trichloropropane 2.0 0.50 0.023 ug/l SM 6200B
1,2,4-Trimethylbenzene 108 5.0 1.5 ug/l SM 6200B
1,3,5-Trimethylbenzene 39.6 0.50 0.16 ug/l SM 6200B
m,p-Xylene 341 10 3.4 ug/l SM 6200B
o-Xylene 178 5.0 1.5 ug/l SM 6200B
Xylene (total)519 5.0 1.6 ug/l SM 6200B
LA91046-3 MW-5
Toluene 0.55 0.50 0.29 ug/l SM 6200B
4 of 64
LA910462
Summary of Hits Page 2 of 3
Job Number:LA91046
Account:Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Collected:05/25/23
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
LA91046-4 MW-6
Benzene 3.4 0.50 0.27 ug/l SM 6200B
1,2-Dichloroethane 1.9 0.20 0.12 ug/l SM 6200B
Di-Isopropyl Ether 0.21 J 0.50 0.073 ug/l SM 6200B
Naphthalene 0.21 J 0.50 0.10 ug/l SM 6200B
Toluene 0.63 0.50 0.29 ug/l SM 6200B
o-Xylene 0.59 0.50 0.15 ug/l SM 6200B
Xylene (total)0.59 0.50 0.16 ug/l SM 6200B
LA91046-5 MW-7
Benzene 439 2.5 1.4 ug/l SM 6200B
n-Butylbenzene 0.86 J 2.5 0.46 ug/l SM 6200B
1,2-Dichloroethane 40.6 1.0 0.61 ug/l SM 6200B
Di-Isopropyl Ether 36.7 2.5 0.37 ug/l SM 6200B
Isopropylbenzene 6.9 2.5 0.66 ug/l SM 6200B
Methylene Chloride 0.63 J 2.5 0.40 ug/l SM 6200B
Methyl Tert Butyl Ether 2.7 2.5 0.34 ug/l SM 6200B
Naphthalene 35.9 2.5 0.50 ug/l SM 6200B
1,2,4-Trimethylbenzene 6.6 2.5 0.73 ug/l SM 6200B
m,p-Xylene 2.3 J 5.0 1.7 ug/l SM 6200B
o-Xylene 5.1 2.5 0.74 ug/l SM 6200B
Xylene (total)7.4 2.5 0.81 ug/l SM 6200B
LA91046-6 MW-8
Toluene 0.65 0.50 0.29 ug/l SM 6200B
LA91046-7 MW-9
Toluene 0.64 0.50 0.29 ug/l SM 6200B
LA91046-8 WSW4
Ethyl Alcohol 23.2 J 50 8.4 ug/l SM 6200B
Toluene 0.61 0.50 0.29 ug/l SM 6200B
LA91046-9 FIELD BLANK
Toluene a 0.50 0.50 0.29 ug/l SM 6200B
LA91046-10 TRIP BLANK
Acetone a 56.2 10 1.2 ug/l SM 6200B
5 of 64
LA910462
Summary of Hits Page 3 of 3
Job Number:LA91046
Account:Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Collected:05/25/23
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
Chlorobenzene a 0.60 0.50 0.16 ug/l SM 6200B
Chloroform a 0.24 J 0.50 0.094 ug/l SM 6200B
Ethyl Alcohol a 63.5 50 8.4 ug/l SM 6200B
Methylene Chloride a 19.1 0.50 0.080 ug/l SM 6200B
Methyl Ethyl Ketone a 2.1 J 25 0.28 ug/l SM 6200B
Toluene a 2.3 0.50 0.29 ug/l SM 6200B
(a) Confirmed by reanalysis.
6 of 64
LA910462
SGS North America Inc.
Sample Results
Report of Analysis
Scott, LA
Section 3
7 of 64
LA910463
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-1
Lab Sample ID:LA91046-1 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0146904.D 100 06/06/23 13:51 MB n/a n/a V2K4127
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 1000 120 ug/l
71-43-2 Benzene 1510 50 27 ug/l
108-86-1 Bromobenzene ND 50 18 ug/l
74-97-5 Bromochloromethane ND 50 12 ug/l
75-27-4 Bromodichloromethane ND 50 18 ug/l
75-25-2 Bromoform ND 50 10 ug/l
104-51-8 n-Butylbenzene ND 50 9.2 ug/l
135-98-8 sec-Butylbenzene ND 50 14 ug/l
98-06-6 tert-Butylbenzene ND 50 16 ug/l
56-23-5 Carbon Tetrachloride ND 20 9.2 ug/l
108-90-7 Chlorobenzene ND 50 16 ug/l
75-00-3 Chloroethane ND 50 5.5 ug/l
67-66-3 Chloroform ND 50 9.4 ug/l
95-49-8 o-Chlorotoluene ND 50 16 ug/l
106-43-4 p-Chlorotoluene ND 50 20 ug/l
124-48-1 Dibromochloromethane ND 20 7.5 ug/l
96-12-8 1,2-Dibromo-3-chloropropan a ND 50 13 ug/l
106-93-4 1,2-Dibromoethane 59.4 50 24 ug/l
75-71-8 Dichlorodifluoromethane ND 50 12 ug/l
541-73-1 m-Dichlorobenzene ND 50 6.3 ug/l
95-50-1 o-Dichlorobenzene ND 50 20 ug/l
106-46-7 p-Dichlorobenzene ND 50 22 ug/l
75-34-3 1,1-Dichloroethane ND 50 10 ug/l
107-06-2 1,2-Dichloroethane ND 20 12 ug/l
75-35-4 1,1-Dichloroethylene ND 50 9.4 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 50 11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 50 15 ug/l
78-87-5 1,2-Dichloropropane ND 30 13 ug/l
142-28-9 1,3-Dichloropropane ND 50 21 ug/l
594-20-7 2,2-Dichloropropane ND 50 7.9 ug/l
563-58-6 1,1-Dichloropropene ND 50 12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 20 10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
8 of 64
LA9104633.1
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-1
Lab Sample ID:LA91046-1 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 20 5.6 ug/l
108-20-3 Di-Isopropyl Ether 38.9 50 7.3 ug/l J
64-17-5 Ethyl Alcohol ND 5000 840 ug/l
100-41-4 Ethylbenzene 879 50 20 ug/l
591-78-6 2-Hexanone ND 100 42 ug/l
87-68-3 Hexachlorobutadiene ND 20 11 ug/l
98-82-8 Isopropylbenzene 54.6 50 13 ug/l
99-87-6 p-Isopropyltoluene 51.4 50 13 ug/l
74-83-9 Methyl Bromide ND 50 23 ug/l
74-87-3 Methyl Chloride ND 50 6.6 ug/l
74-95-3 Methylene Bromide ND 50 11 ug/l
75-09-2 Methylene Chloride ND 50 8.0 ug/l
78-93-3 Methyl Ethyl Ketone ND 2500 28 ug/l
108-10-1 4-Methyl-2-pentanone ND 50 24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 50 6.8 ug/l
91-20-3 Naphthalene 487 50 10 ug/l
103-65-1 n-Propylbenzene 134 50 22 ug/l
100-42-5 Styrene 15.4 50 13 ug/l J
630-20-6 1,1,1,2-Tetrachloroethane ND 50 18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 20 12 ug/l
127-18-4 Tetrachloroethylene ND 50 22 ug/l
108-88-3 Toluene 7300 50 29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 50 16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 50 17 ug/l
71-55-6 1,1,1-Trichloroethane ND 50 16 ug/l
79-00-5 1,1,2-Trichloroethane ND 30 17 ug/l
79-01-6 Trichloroethylene ND 50 18 ug/l
75-69-4 Trichlorofluoromethane ND 50 7.3 ug/l
96-18-4 1,2,3-Trichloropropane ND 50 2.3 ug/l
95-63-6 1,2,4-Trimethylbenzene 2580 50 15 ug/l
108-67-8 1,3,5-Trimethylbenzene 873 50 16 ug/l
108-05-4 Vinyl Acetate ND 50 6.9 ug/l
75-01-4 Vinyl Chloride ND 10 7.5 ug/l
m,p-Xylene 5430 100 34 ug/l
95-47-6 o-Xylene 2930 50 15 ug/l
1330-20-7 Xylene (total)8350 50 16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 109%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
9 of 64
LA9104633.1
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-1
Lab Sample ID:LA91046-1 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 98%70-130%
460-00-4 4-Bromofluorobenzene 97%70-130%
(a) Provisional certification.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
10 of 64
LA9104633.1
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-4R
Lab Sample ID:LA91046-2 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0146881.D 1 06/05/23 16:42 MB n/a n/a V2K4126
Run #2 2K0146920.D 10 06/07/23 14:13 MB n/a n/a V2K4128
Run #3 a 2K0146905.D 5 06/06/23 14:20 MB n/a n/a V2K4127
Purge Volume
Run #1 25.0 ml
Run #2 25.0 ml
Run #3 25.0 ml
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene 552 b 5.0 2.7 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene 1.5 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropan c ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane 7.0 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane 0.37 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
11 of 64
LA9104633.2
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-4R
Lab Sample ID:LA91046-2 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether 13.9 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene 124 b 5.0 2.0 ug/l
591-78-6 2-Hexanone 1.4 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene 8.4 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene 0.74 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene 50.5 0.50 0.10 ug/l
103-65-1 n-Propylbenzene 23.3 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene 91.9 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane 2.0 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene 108 b 5.0 1.5 ug/l
108-67-8 1,3,5-Trimethylbenzene 39.6 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene 341 b 10 3.4 ug/l
95-47-6 o-Xylene 178 b 5.0 1.5 ug/l
1330-20-7 Xylene (total)519 b 5.0 1.6 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
12 of 64
LA9104633.2
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-4R
Lab Sample ID:LA91046-2 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Run# 3 Limits
17060-07-0 1,2-Dichloroethane-D4 112%110%108%70-130%
2037-26-5 Toluene-D8 98%99%100%70-130%
460-00-4 4-Bromofluorobenzene 90%97%96%70-130%
(a) Sample used for QC purposes only.
(b) Result is from Run# 2
(c) Provisional certification.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
13 of 64
LA9104633.2
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-5
Lab Sample ID:LA91046-3 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0146882.D 1 06/05/23 17:10 MB n/a n/a V2K4126
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropan a ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
14 of 64
LA9104633.3
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-5
Lab Sample ID:LA91046-3 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene 0.55 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 113%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
15 of 64
LA9104633.3
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-5
Lab Sample ID:LA91046-3 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 95%70-130%
(a) Provisional certification.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
16 of 64
LA9104633.3
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-6
Lab Sample ID:LA91046-4 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0146883.D 1 06/05/23 17:38 MB n/a n/a V2K4126
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene 3.4 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropan a ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane 1.9 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
17 of 64
LA9104633.4
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-6
Lab Sample ID:LA91046-4 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether 0.21 0.50 0.073 ug/l J
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene 0.21 0.50 0.10 ug/l J
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene 0.63 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene 0.59 0.50 0.15 ug/l
1330-20-7 Xylene (total)0.59 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 112%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
18 of 64
LA9104633.4
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-6
Lab Sample ID:LA91046-4 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 99%70-130%
(a) Provisional certification.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
19 of 64
LA9104633.4
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-7
Lab Sample ID:LA91046-5 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0146884.D 5 06/05/23 18:07 MB n/a n/a V2K4126
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 50 6.2 ug/l
71-43-2 Benzene 439 2.5 1.4 ug/l
108-86-1 Bromobenzene ND 2.5 0.91 ug/l
74-97-5 Bromochloromethane ND 2.5 0.61 ug/l
75-27-4 Bromodichloromethane ND 2.5 0.90 ug/l
75-25-2 Bromoform ND 2.5 0.50 ug/l
104-51-8 n-Butylbenzene 0.86 2.5 0.46 ug/l J
135-98-8 sec-Butylbenzene ND 2.5 0.71 ug/l
98-06-6 tert-Butylbenzene ND 2.5 0.79 ug/l
56-23-5 Carbon Tetrachloride ND 1.0 0.46 ug/l
108-90-7 Chlorobenzene ND 2.5 0.82 ug/l
75-00-3 Chloroethane ND 2.5 0.28 ug/l
67-66-3 Chloroform ND 2.5 0.47 ug/l
95-49-8 o-Chlorotoluene ND 2.5 0.82 ug/l
106-43-4 p-Chlorotoluene ND 2.5 1.0 ug/l
124-48-1 Dibromochloromethane ND 1.0 0.37 ug/l
96-12-8 1,2-Dibromo-3-chloropropan a ND 2.5 0.64 ug/l
106-93-4 1,2-Dibromoethane ND 2.5 1.2 ug/l
75-71-8 Dichlorodifluoromethane ND 2.5 0.61 ug/l
541-73-1 m-Dichlorobenzene ND 2.5 0.32 ug/l
95-50-1 o-Dichlorobenzene ND 2.5 0.98 ug/l
106-46-7 p-Dichlorobenzene ND 2.5 1.1 ug/l
75-34-3 1,1-Dichloroethane ND 2.5 0.52 ug/l
107-06-2 1,2-Dichloroethane 40.6 1.0 0.61 ug/l
75-35-4 1,1-Dichloroethylene ND 2.5 0.47 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 2.5 0.55 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 2.5 0.77 ug/l
78-87-5 1,2-Dichloropropane ND 1.5 0.63 ug/l
142-28-9 1,3-Dichloropropane ND 2.5 1.0 ug/l
594-20-7 2,2-Dichloropropane ND 2.5 0.40 ug/l
563-58-6 1,1-Dichloropropene ND 2.5 0.58 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 1.0 0.51 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
20 of 64
LA9104633.5
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-7
Lab Sample ID:LA91046-5 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 1.0 0.28 ug/l
108-20-3 Di-Isopropyl Ether 36.7 2.5 0.37 ug/l
64-17-5 Ethyl Alcohol ND 250 42 ug/l
100-41-4 Ethylbenzene ND 2.5 1.0 ug/l
591-78-6 2-Hexanone ND 5.0 2.1 ug/l
87-68-3 Hexachlorobutadiene ND 1.0 0.55 ug/l
98-82-8 Isopropylbenzene 6.9 2.5 0.66 ug/l
99-87-6 p-Isopropyltoluene ND 2.5 0.65 ug/l
74-83-9 Methyl Bromide ND 2.5 1.1 ug/l
74-87-3 Methyl Chloride ND 2.5 0.33 ug/l
74-95-3 Methylene Bromide ND 2.5 0.57 ug/l
75-09-2 Methylene Chloride 0.63 2.5 0.40 ug/l J
78-93-3 Methyl Ethyl Ketone ND 130 1.4 ug/l
108-10-1 4-Methyl-2-pentanone ND 2.5 1.2 ug/l
1634-04-4 Methyl Tert Butyl Ether 2.7 2.5 0.34 ug/l
91-20-3 Naphthalene 35.9 2.5 0.50 ug/l
103-65-1 n-Propylbenzene ND 2.5 1.1 ug/l
100-42-5 Styrene ND 2.5 0.63 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 2.5 0.92 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 1.0 0.62 ug/l
127-18-4 Tetrachloroethylene ND 2.5 1.1 ug/l
108-88-3 Toluene ND 2.5 1.5 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 2.5 0.80 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 2.5 0.85 ug/l
71-55-6 1,1,1-Trichloroethane ND 2.5 0.82 ug/l
79-00-5 1,1,2-Trichloroethane ND 1.5 0.87 ug/l
79-01-6 Trichloroethylene ND 2.5 0.90 ug/l
75-69-4 Trichlorofluoromethane ND 2.5 0.37 ug/l
96-18-4 1,2,3-Trichloropropane ND 2.5 0.11 ug/l
95-63-6 1,2,4-Trimethylbenzene 6.6 2.5 0.73 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 2.5 0.81 ug/l
108-05-4 Vinyl Acetate ND 2.5 0.34 ug/l
75-01-4 Vinyl Chloride ND 0.50 0.38 ug/l
m,p-Xylene 2.3 5.0 1.7 ug/l J
95-47-6 o-Xylene 5.1 2.5 0.74 ug/l
1330-20-7 Xylene (total)7.4 2.5 0.81 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 111%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
21 of 64
LA9104633.5
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-7
Lab Sample ID:LA91046-5 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 100%70-130%
460-00-4 4-Bromofluorobenzene 98%70-130%
(a) Provisional certification.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
22 of 64
LA9104633.5
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-8
Lab Sample ID:LA91046-6 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0146885.D 1 06/05/23 18:35 MB n/a n/a V2K4126
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropan a ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
23 of 64
LA9104633.6
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-8
Lab Sample ID:LA91046-6 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene 0.65 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 111%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
24 of 64
LA9104633.6
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-8
Lab Sample ID:LA91046-6 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 97%70-130%
(a) Provisional certification.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
25 of 64
LA9104633.6
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:MW-9
Lab Sample ID:LA91046-7 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0146886.D 1 06/05/23 19:04 MB n/a n/a V2K4126
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropan a ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
26 of 64
LA9104633.7
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:MW-9
Lab Sample ID:LA91046-7 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene 0.64 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 114%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
27 of 64
LA9104633.7
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:MW-9
Lab Sample ID:LA91046-7 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 97%70-130%
(a) Provisional certification.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
28 of 64
LA9104633.7
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:WSW4
Lab Sample ID:LA91046-8 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0146878.D 1 06/05/23 15:17 MB n/a n/a V2K4126
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropan a ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
29 of 64
LA9104633.8
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:WSW4
Lab Sample ID:LA91046-8 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol 23.2 50 8.4 ug/l J
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene 0.61 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 111%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
30 of 64
LA9104633.8
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:WSW4
Lab Sample ID:LA91046-8 Date Sampled:05/25/23
Matrix:AQ - Ground Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 96%70-130%
(a) Provisional certification.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
31 of 64
LA9104633.8
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:FIELD BLANK
Lab Sample ID:LA91046-9 Date Sampled:05/25/23
Matrix:AQ - Field Blank Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0146876.D 1 06/05/23 14:20 MB n/a n/a V2K4126
Run #2 a 2K0146903.D 1 06/06/23 13:22 MB n/a n/a V2K4127
Purge Volume
Run #1 25.0 ml
Run #2 25.0 ml
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropan b ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
32 of 64
LA9104633.9
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:FIELD BLANK
Lab Sample ID:LA91046-9 Date Sampled:05/25/23
Matrix:AQ - Field Blank Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene c 0.50 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 111%108%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
33 of 64
LA9104633.9
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:FIELD BLANK
Lab Sample ID:LA91046-9 Date Sampled:05/25/23
Matrix:AQ - Field Blank Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 100%100%70-130%
460-00-4 4-Bromofluorobenzene 96%95%70-130%
(a) Confirmation run.
(b) Provisional certification.
(c) Confirmed by reanalysis.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
34 of 64
LA9104633.9
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:TRIP BLANK
Lab Sample ID:LA91046-10 Date Sampled:05/25/23
Matrix:AQ - Trip Blank Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0146902.D 1 06/06/23 12:53 MB n/a n/a V2K4127
Run #2 a 2K0146875.D 1 06/05/23 13:52 MB n/a n/a V2K4126
Purge Volume
Run #1 25.0 ml
Run #2 25.0 ml
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone b 56.2 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene b 0.60 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform b 0.24 0.50 0.094 ug/l J
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
35 of 64
LA9104633.10
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:TRIP BLANK
Lab Sample ID:LA91046-10 Date Sampled:05/25/23
Matrix:AQ - Trip Blank Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol b 63.5 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride b 19.1 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone b 2.1 25 0.28 ug/l J
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene b 2.3 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 105%108%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
36 of 64
LA9104633.10
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:TRIP BLANK
Lab Sample ID:LA91046-10 Date Sampled:05/25/23
Matrix:AQ - Trip Blank Water Date Received:06/01/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 98%99%70-130%
460-00-4 4-Bromofluorobenzene 93%96%70-130%
(a) Confirmation run.
(b) Confirmed by reanalysis.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
37 of 64
LA9104633.10
SGS North America Inc.
Misc. Forms
Custody Documents and Other Forms
Includes the following where applicable:
• Chain of Custody
Scott, LA
Section 4
38 of 64
LA910464
CHAIN OF CUSTODY PAGE \ or \PFIEIVI SGS l{orth Amertcr tnc. - Scott500 Ambassador Caff6ry parkway, Scott, LA 705g3IEL. 337.2?7.4775 FAX: [phone]
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LA91046: Chain of Custody
Page 1 of 4
39 of 64
LA9104644.1
LA91046: Chain of Custody
Page 2 of 4
40 of 64
LA9104644.1
rc SAMPLE hrurttrru
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LA91046: Chain of Custody
Page 3 of 4
41 of 64
LA9104644.1
SGS Sample Receipt Summary
Job Number:LA91046 Client:ATC
Date / Time Received:6/1/2023 10:15:00 AM Delivery Method:FedEx
Project:BARBARA SPENCER PROPERTY
4. No. Coolers:1
Airbill #'s:5707 9051 4328
Cooler Security
1. Custody Seals Present:
Y or N
2. Custody Seals Intact:
3. COC Present:
4. Smpl Dates/Time OK
2. Thermometer ID:
Cooler Temperature Y or N
1. Temp criteria achieved:
3. Cooler media:
IR001;
Ice (direct contact)
Quality Control Preservation Y or N N/A
1. Trip Blank present / cooler:
2. Trip Blank listed on COC:
3. Samples preserved properly:
4. VOCs headspace free:
Sample Integrity - Documentation Y or N
1. Sample labels present on bottles:
2. Container labeling complete:
3. Sample container label / COC agree:
Sample Integrity - Condition Y or N
1. Sample recvd within HT:
3. Condition of sample:
2. All containers accounted for:
Sample Integrity - Instructions
1. Analysis requested is clear:
2. Bottles received for unspecified tests
3. Sufficient volume recvd for analysis:
4. Compositing instructions clear:
5. Filtering instructions clear:
Intact
Y or N
Comments
Y or N N/A
Cooler Temps (Initial/Adjusted):#1: (3.2/3.2); IR001
LA91046: Chain of Custody
Page 4 of 4
42 of 64
LA9104644.1
SGS North America Inc.
MS Volatiles
QC Data Summaries
Includes the following where applicable:
• Method Blank Summaries
• Blank Spike Summaries
• Matrix Spike and Duplicate Summaries
Scott, LA
Section 5
43 of 64
LA910465
Method Blank Summary Page 1 of 3
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4126-MB1 2K0146874.D 1 06/05/23 MB n/a n/a V2K4126
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-2, LA91046-3, LA91046-4, LA91046-5, LA91046-6, LA91046-7, LA91046-8, LA91046-9
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol ND 50 8.4 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
44 of 64
LA9104655.1.1
Method Blank Summary Page 2 of 3
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4126-MB1 2K0146874.D 1 06/05/23 MB n/a n/a V2K4126
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-2, LA91046-3, LA91046-4, LA91046-5, LA91046-6, LA91046-7, LA91046-8, LA91046-9
CAS No.Compound Result RL MDL Units Q
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
45 of 64
LA9104655.1.1
Method Blank Summary Page 3 of 3
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4126-MB1 2K0146874.D 1 06/05/23 MB n/a n/a V2K4126
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-2, LA91046-3, LA91046-4, LA91046-5, LA91046-6, LA91046-7, LA91046-8, LA91046-9
CAS No.Surrogate Recoveries Limits
17060-07-0 1,2-Dichloroethane-D4 103%70-130%
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 94%70-130%
46 of 64
LA9104655.1.1
Method Blank Summary Page 1 of 3
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4127-MB1 2K0146901.D 1 06/06/23 MB n/a n/a V2K4127
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-1, LA91046-10
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol 9.4 50 8.4 ug/l J
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
47 of 64
LA9104655.1.2
Method Blank Summary Page 2 of 3
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4127-MB1 2K0146901.D 1 06/06/23 MB n/a n/a V2K4127
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-1, LA91046-10
CAS No.Compound Result RL MDL Units Q
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride 0.17 0.50 0.066 ug/l J
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
48 of 64
LA9104655.1.2
Method Blank Summary Page 3 of 3
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4127-MB1 2K0146901.D 1 06/06/23 MB n/a n/a V2K4127
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-1, LA91046-10
CAS No.Surrogate Recoveries Limits
17060-07-0 1,2-Dichloroethane-D4 110%70-130%
2037-26-5 Toluene-D8 98%70-130%
460-00-4 4-Bromofluorobenzene 96%70-130%
49 of 64
LA9104655.1.2
Method Blank Summary Page 1 of 1
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4128-MB1 2K0146919.D 1 06/07/23 MB n/a n/a V2K4128
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-2
CAS No.Compound Result RL MDL Units Q
71-43-2 Benzene ND 0.50 0.27 ug/l
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Limits
17060-07-0 1,2-Dichloroethane-D4 111%70-130%
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 97%70-130%
50 of 64
LA9104655.1.3
Blank Spike/Blank Spike Duplicate Summary Page 1 of 3
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4126-BS1 2K0146871.D 1 06/05/23 MB n/a n/a V2K4126
V2K4126-BSD1 2K0146872.D 1 06/05/23 MB n/a n/a V2K4126
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-2, LA91046-3, LA91046-4, LA91046-5, LA91046-6, LA91046-7, LA91046-8, LA91046-9
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
67-64-1 Acetone 50 55.3 111 53.3 107 4 70-130/30
71-43-2 Benzene 20 20.3 102 19.8 99 2 70-130/30
108-86-1 Bromobenzene 20 20.2 101 20.0 100 1 70-130/30
74-97-5 Bromochloromethane 20 21.1 106 20.6 103 2 70-130/30
75-27-4 Bromodichloromethane 20 22.5 113 21.9 110 3 70-130/30
75-25-2 Bromoform 20 20.7 104 20.9 105 1 70-130/30
104-51-8 n-Butylbenzene 20 22.4 112 22.5 113 0 70-130/30
135-98-8 sec-Butylbenzene 20 22.2 111 21.8 109 2 70-130/30
98-06-6 tert-Butylbenzene 20 22.0 110 21.6 108 2 70-130/30
56-23-5 Carbon Tetrachloride 20 24.0 120 23.5 118 2 70-130/30
108-90-7 Chlorobenzene 20 20.7 104 20.5 103 1 70-130/30
75-00-3 Chloroethane 20 20.5 103 19.5 98 5 60-140/30
67-66-3 Chloroform 20 20.6 103 19.7 99 4 70-130/30
95-49-8 o-Chlorotoluene 20 22.0 110 21.5 108 2 70-130/30
106-43-4 p-Chlorotoluene 20 21.5 108 20.9 105 3 70-130/30
124-48-1 Dibromochloromethane 20 19.9 100 19.9 100 0 70-130/30
96-12-8 1,2-Dibromo-3-chloropropane 20 18.7 94 19.1 96 2 70-130/30
106-93-4 1,2-Dibromoethane 20 21.2 106 21.2 106 0 70-130/30
75-71-8 Dichlorodifluoromethane 20 22.6 113 22.1 111 2 60-140/30
541-73-1 m-Dichlorobenzene 20 21.3 107 21.0 105 1 70-130/30
95-50-1 o-Dichlorobenzene 20 21.1 106 20.8 104 1 70-130/30
106-46-7 p-Dichlorobenzene 20 20.2 101 20.1 101 0 70-130/30
75-34-3 1,1-Dichloroethane 20 21.4 107 20.7 104 3 70-130/30
107-06-2 1,2-Dichloroethane 20 18.9 95 18.7 94 1 70-130/30
75-35-4 1,1-Dichloroethylene 20 22.6 113 21.7 109 4 70-130/30
156-59-2 cis-1,2-Dichloroethylene 20 21.1 106 20.5 103 3 70-130/30
156-60-5 trans-1,2-Dichloroethylene 20 21.7 109 20.8 104 4 70-130/30
78-87-5 1,2-Dichloropropane 20 20.5 103 19.9 100 3 70-130/30
142-28-9 1,3-Dichloropropane 20 20.7 104 20.6 103 0 70-130/30
594-20-7 2,2-Dichloropropane 20 23.9 120 23.2 116 3 70-130/30
563-58-6 1,1-Dichloropropene 20 22.1 111 21.3 107 4 70-130/30
10061-01-5 cis-1,3-Dichloropropene 20 23.2 116 22.6 113 3 70-130/30
10061-02-6 trans-1,3-Dichloropropene 20 19.9 100 19.9 100 0 70-130/30
108-20-3 Di-Isopropyl Ether 20 21.2 106 20.8 104 2 70-130/30
64-17-5 Ethyl Alcohol 400 413 103 418 105 1 70-130/30
100-41-4 Ethylbenzene 20 20.1 101 19.7 99 2 70-130/30
* = Outside of Control Limits.
51 of 64
LA9104655.2.1
Blank Spike/Blank Spike Duplicate Summary Page 2 of 3
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4126-BS1 2K0146871.D 1 06/05/23 MB n/a n/a V2K4126
V2K4126-BSD1 2K0146872.D 1 06/05/23 MB n/a n/a V2K4126
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-2, LA91046-3, LA91046-4, LA91046-5, LA91046-6, LA91046-7, LA91046-8, LA91046-9
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
591-78-6 2-Hexanone 50 46.6 93 49.6 99 6 70-130/30
87-68-3 Hexachlorobutadiene 20 22.5 113 22.4 112 0 70-130/30
98-82-8 Isopropylbenzene 20 21.3 107 21.1 106 1 70-130/30
99-87-6 p-Isopropyltoluene 20 22.2 111 22.0 110 1 70-130/30
74-83-9 Methyl Bromide 20 24.1 121 23.1 116 4 60-140/30
74-87-3 Methyl Chloride 20 20.4 102 19.7 99 3 60-140/30
74-95-3 Methylene Bromide 20 19.5 98 19.5 98 0 70-130/30
75-09-2 Methylene Chloride 20 19.3 97 18.5 93 4 70-130/30
78-93-3 Methyl Ethyl Ketone 50 48.4 97 48.3 97 0 70-130/30
108-10-1 4-Methyl-2-pentanone 50 46.6 93 47.1 94 1 70-130/30
1634-04-4 Methyl Tert Butyl Ether 20 20.4 102 20.5 103 0 70-130/30
91-20-3 Naphthalene 20 18.9 95 19.2 96 2 70-130/30
103-65-1 n-Propylbenzene 20 22.1 111 21.7 109 2 70-130/30
100-42-5 Styrene 20 22.4 112 22.0 110 2 70-130/30
630-20-6 1,1,1,2-Tetrachloroethane 20 22.9 115 22.7 114 1 70-130/30
79-34-5 1,1,2,2-Tetrachloroethane 20 20.6 103 20.9 105 1 70-130/30
127-18-4 Tetrachloroethylene 20 20.7 104 20.8 104 0 70-130/30
108-88-3 Toluene 20 20.7 104 20.4 102 1 70-130/30
87-61-6 1,2,3-Trichlorobenzene 20 22.0 110 22.0 110 0 70-130/30
120-82-1 1,2,4-Trichlorobenzene 20 21.6 108 21.6 108 0 70-130/30
71-55-6 1,1,1-Trichloroethane 20 23.4 117 22.5 113 4 70-130/30
79-00-5 1,1,2-Trichloroethane 20 19.4 97 19.6 98 1 70-130/30
79-01-6 Trichloroethylene 20 19.5 98 18.9 95 3 70-130/30
75-69-4 Trichlorofluoromethane 20 22.3 112 21.5 108 4 60-140/30
96-18-4 1,2,3-Trichloropropane 20 19.1 96 19.6 98 3 70-130/30
95-63-6 1,2,4-Trimethylbenzene 20 21.7 109 21.7 109 0 70-130/30
108-67-8 1,3,5-Trimethylbenzene 20 22.5 113 22.0 110 2 70-130/30
108-05-4 Vinyl Acetate 20 23.8 119 23.5 118 1 70-130/30
75-01-4 Vinyl Chloride 20 22.3 112 21.4 107 4 60-140/30
m,p-Xylene 40 40.6 102 39.5 99 3 70-130/30
95-47-6 o-Xylene 20 19.1 96 18.7 94 2 70-130/30
1330-20-7 Xylene (total)60 59.7 100 58.2 97 3 70-130/30
* = Outside of Control Limits.
52 of 64
LA9104655.2.1
Blank Spike/Blank Spike Duplicate Summary Page 3 of 3
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4126-BS1 2K0146871.D 1 06/05/23 MB n/a n/a V2K4126
V2K4126-BSD1 2K0146872.D 1 06/05/23 MB n/a n/a V2K4126
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-2, LA91046-3, LA91046-4, LA91046-5, LA91046-6, LA91046-7, LA91046-8, LA91046-9
CAS No.Surrogate Recoveries BSP BSD Limits
17060-07-0 1,2-Dichloroethane-D4 108%106%70-130%
2037-26-5 Toluene-D8 100%100%70-130%
460-00-4 4-Bromofluorobenzene 97%96%70-130%
* = Outside of Control Limits.
53 of 64
LA9104655.2.1
Blank Spike/Blank Spike Duplicate Summary Page 1 of 3
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4127-BS1 2K0146898.D 1 06/06/23 MB n/a n/a V2K4127
V2K4127-BSD1 2K0146899.D 1 06/06/23 MB n/a n/a V2K4127
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-1, LA91046-10
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
67-64-1 Acetone 50 60.1 120 58.2 116 3 70-130/30
71-43-2 Benzene 20 20.0 100 19.8 99 1 70-130/30
108-86-1 Bromobenzene 20 20.2 101 19.9 100 1 70-130/30
74-97-5 Bromochloromethane 20 20.9 105 20.8 104 0 70-130/30
75-27-4 Bromodichloromethane 20 21.9 110 22.3 112 2 70-130/30
75-25-2 Bromoform 20 21.4 107 21.4 107 0 70-130/30
104-51-8 n-Butylbenzene 20 22.4 112 22.6 113 1 70-130/30
135-98-8 sec-Butylbenzene 20 22.0 110 21.9 110 0 70-130/30
98-06-6 tert-Butylbenzene 20 21.8 109 21.8 109 0 70-130/30
56-23-5 Carbon Tetrachloride 20 23.5 118 23.0 115 2 70-130/30
108-90-7 Chlorobenzene 20 20.4 102 20.3 102 0 70-130/30
75-00-3 Chloroethane 20 19.7 99 19.3 97 2 60-140/30
67-66-3 Chloroform 20 20.1 101 19.8 99 2 70-130/30
95-49-8 o-Chlorotoluene 20 21.8 109 21.9 110 0 70-130/30
106-43-4 p-Chlorotoluene 20 21.1 106 21.3 107 1 70-130/30
124-48-1 Dibromochloromethane 20 20.3 102 20.1 101 1 70-130/30
96-12-8 1,2-Dibromo-3-chloropropane 20 19.8 99 20.3 102 2 70-130/30
106-93-4 1,2-Dibromoethane 20 21.5 108 21.7 109 1 70-130/30
75-71-8 Dichlorodifluoromethane 20 21.8 109 20.8 104 5 60-140/30
541-73-1 m-Dichlorobenzene 20 21.1 106 21.2 106 0 70-130/30
95-50-1 o-Dichlorobenzene 20 21.3 107 21.3 107 0 70-130/30
106-46-7 p-Dichlorobenzene 20 20.1 101 20.3 102 1 70-130/30
75-34-3 1,1-Dichloroethane 20 20.8 104 20.6 103 1 70-130/30
107-06-2 1,2-Dichloroethane 20 19.4 97 19.3 97 1 70-130/30
75-35-4 1,1-Dichloroethylene 20 21.5 108 21.2 106 1 70-130/30
156-59-2 cis-1,2-Dichloroethylene 20 20.7 104 20.1 101 3 70-130/30
156-60-5 trans-1,2-Dichloroethylene 20 20.9 105 20.7 104 1 70-130/30
78-87-5 1,2-Dichloropropane 20 20.2 101 20.2 101 0 70-130/30
142-28-9 1,3-Dichloropropane 20 20.8 104 20.9 105 0 70-130/30
594-20-7 2,2-Dichloropropane 20 22.7 114 22.1 111 3 70-130/30
563-58-6 1,1-Dichloropropene 20 21.4 107 21.1 106 1 70-130/30
10061-01-5 cis-1,3-Dichloropropene 20 22.8 114 22.9 115 0 70-130/30
10061-02-6 trans-1,3-Dichloropropene 20 19.8 99 19.9 100 1 70-130/30
108-20-3 Di-Isopropyl Ether 20 20.9 105 20.8 104 0 70-130/30
64-17-5 Ethyl Alcohol 400 433 108 390 98 10 70-130/30
100-41-4 Ethylbenzene 20 19.9 100 19.7 99 1 70-130/30
* = Outside of Control Limits.
54 of 64
LA9104655.2.2
Blank Spike/Blank Spike Duplicate Summary Page 2 of 3
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4127-BS1 2K0146898.D 1 06/06/23 MB n/a n/a V2K4127
V2K4127-BSD1 2K0146899.D 1 06/06/23 MB n/a n/a V2K4127
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-1, LA91046-10
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
591-78-6 2-Hexanone 50 48.7 97 53.0 106 8 70-130/30
87-68-3 Hexachlorobutadiene 20 22.2 111 22.3 112 0 70-130/30
98-82-8 Isopropylbenzene 20 21.3 107 20.7 104 3 70-130/30
99-87-6 p-Isopropyltoluene 20 22.0 110 22.1 111 0 70-130/30
74-83-9 Methyl Bromide 20 23.9 120 23.7 119 1 60-140/30
74-87-3 Methyl Chloride 20 20.3 102 19.0 95 7 60-140/30
74-95-3 Methylene Bromide 20 20.2 101 20.2 101 0 70-130/30
75-09-2 Methylene Chloride 20 18.9 95 18.8 94 1 70-130/30
78-93-3 Methyl Ethyl Ketone 50 49.7 99 50.0 100 1 70-130/30
108-10-1 4-Methyl-2-pentanone 50 49.2 98 49.7 99 1 70-130/30
1634-04-4 Methyl Tert Butyl Ether 20 20.5 103 20.8 104 1 70-130/30
91-20-3 Naphthalene 20 19.3 97 20.1 101 4 70-130/30
103-65-1 n-Propylbenzene 20 21.6 108 22.0 110 2 70-130/30
100-42-5 Styrene 20 22.3 112 21.9 110 2 70-130/30
630-20-6 1,1,1,2-Tetrachloroethane 20 22.8 114 22.7 114 0 70-130/30
79-34-5 1,1,2,2-Tetrachloroethane 20 21.3 107 22.1 111 4 70-130/30
127-18-4 Tetrachloroethylene 20 20.9 105 21.0 105 0 70-130/30
108-88-3 Toluene 20 22.3 112 22.1 111 1 70-130/30
87-61-6 1,2,3-Trichlorobenzene 20 22.2 111 22.5 113 1 70-130/30
120-82-1 1,2,4-Trichlorobenzene 20 21.3 107 21.9 110 3 70-130/30
71-55-6 1,1,1-Trichloroethane 20 22.5 113 22.4 112 0 70-130/30
79-00-5 1,1,2-Trichloroethane 20 19.8 99 19.8 99 0 70-130/30
79-01-6 Trichloroethylene 20 19.0 95 19.2 96 1 70-130/30
75-69-4 Trichlorofluoromethane 20 21.7 109 21.1 106 3 60-140/30
96-18-4 1,2,3-Trichloropropane 20 20.0 100 20.0 100 0 70-130/30
95-63-6 1,2,4-Trimethylbenzene 20 21.8 109 21.8 109 0 70-130/30
108-67-8 1,3,5-Trimethylbenzene 20 22.3 112 22.3 112 0 70-130/30
108-05-4 Vinyl Acetate 20 23.3 117 23.2 116 0 70-130/30
75-01-4 Vinyl Chloride 20 21.9 110 20.5 103 7 60-140/30
m,p-Xylene 40 40.2 101 39.5 99 2 70-130/30
95-47-6 o-Xylene 20 18.9 95 18.6 93 2 70-130/30
1330-20-7 Xylene (total)60 59.2 99 58.2 97 2 70-130/30
* = Outside of Control Limits.
55 of 64
LA9104655.2.2
Blank Spike/Blank Spike Duplicate Summary Page 3 of 3
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4127-BS1 2K0146898.D 1 06/06/23 MB n/a n/a V2K4127
V2K4127-BSD1 2K0146899.D 1 06/06/23 MB n/a n/a V2K4127
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-1, LA91046-10
CAS No.Surrogate Recoveries BSP BSD Limits
17060-07-0 1,2-Dichloroethane-D4 107%109%70-130%
2037-26-5 Toluene-D8 101%102%70-130%
460-00-4 4-Bromofluorobenzene 99%97%70-130%
* = Outside of Control Limits.
56 of 64
LA9104655.2.2
Blank Spike/Blank Spike Duplicate Summary Page 1 of 1
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4128-BS1 2K0146916.D 1 06/07/23 MB n/a n/a V2K4128
V2K4128-BSD1 2K0146917.D 1 06/07/23 MB n/a n/a V2K4128
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-2
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
71-43-2 Benzene 20 19.6 98 19.6 98 0 70-130/30
100-41-4 Ethylbenzene 20 19.7 99 19.6 98 1 70-130/30
95-63-6 1,2,4-Trimethylbenzene 20 21.8 109 21.5 108 1 70-130/30
m,p-Xylene 40 39.7 99 39.2 98 1 70-130/30
95-47-6 o-Xylene 20 18.7 94 18.7 94 0 70-130/30
1330-20-7 Xylene (total)60 58.3 97 57.9 97 1 70-130/30
CAS No.Surrogate Recoveries BSP BSD Limits
17060-07-0 1,2-Dichloroethane-D4 106%107%70-130%
2037-26-5 Toluene-D8 102%100%70-130%
460-00-4 4-Bromofluorobenzene 97%98%70-130%
* = Outside of Control Limits.
57 of 64
LA9104655.2.3
Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 3
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA91046-5MS 2K0146887.D 20 06/05/23 MB n/a n/a V2K4126
LA91046-5MSD 2K0146888.D 20 06/05/23 MB n/a n/a V2K4126
LA91046-5 2K0146884.D 5 06/05/23 MB n/a n/a V2K4126
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-2, LA91046-3, LA91046-4, LA91046-5, LA91046-6, LA91046-7, LA91046-8, LA91046-9
LA91046-5 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
67-64-1 Acetone ND 1000 644 64* a 1000 658 66* a 2 70-130/20
71-43-2 Benzene 439 400 862 106 400 847 102 2 70-130/20
108-86-1 Bromobenzene ND 400 412 103 400 414 104 0 70-130/20
74-97-5 Bromochloromethane ND 400 444 111 400 441 110 1 70-130/20
75-27-4 Bromodichloromethane ND 400 451 113 400 455 114 1 70-130/20
75-25-2 Bromoform ND 400 415 104 400 440 110 6 70-130/20
104-51-8 n-Butylbenzene 0.86 J 400 438 109 400 434 108 1 70-130/20
135-98-8 sec-Butylbenzene ND 400 434 109 400 436 109 0 70-130/20
98-06-6 tert-Butylbenzene ND 400 448 112 400 453 113 1 70-130/20
56-23-5 Carbon Tetrachloride ND 400 463 116 400 463 116 0 70-130/20
108-90-7 Chlorobenzene ND 400 416 104 400 422 106 1 70-130/20
75-00-3 Chloroethane ND 400 347 87 400 335 84 4 60-140/20
67-66-3 Chloroform ND 400 414 104 400 408 102 1 70-130/20
95-49-8 o-Chlorotoluene ND 400 450 113 400 451 113 0 70-130/20
106-43-4 p-Chlorotoluene ND 400 441 110 400 443 111 0 70-130/20
124-48-1 Dibromochloromethane ND 400 407 102 400 422 106 4 70-130/20
96-12-8 1,2-Dibromo-3-chloropropane ND 400 391 98 400 412 103 5 70-130/20
106-93-4 1,2-Dibromoethane ND 400 441 110 400 451 113 2 70-130/20
75-71-8 Dichlorodifluoromethane ND 400 220 55* a 400 213 53* a 3 60-140/20
541-73-1 m-Dichlorobenzene ND 400 441 110 400 436 109 1 70-130/20
95-50-1 o-Dichlorobenzene ND 400 440 110 400 443 111 1 70-130/20
106-46-7 p-Dichlorobenzene ND 400 420 105 400 419 105 0 70-130/20
75-34-3 1,1-Dichloroethane ND 400 445 111 400 435 109 2 70-130/20
107-06-2 1,2-Dichloroethane 40.6 400 435 99 400 443 101 2 70-130/20
75-35-4 1,1-Dichloroethylene ND 400 430 108 400 429 107 0 70-130/20
156-59-2 cis-1,2-Dichloroethylene ND 400 435 109 400 432 108 1 70-130/20
156-60-5 trans-1,2-Dichloroethylene ND 400 441 110 400 433 108 2 70-130/20
78-87-5 1,2-Dichloropropane ND 400 417 104 400 418 105 0 70-130/20
142-28-9 1,3-Dichloropropane ND 400 430 108 400 432 108 0 70-130/20
594-20-7 2,2-Dichloropropane ND 400 409 102 400 413 103 1 70-130/20
563-58-6 1,1-Dichloropropene ND 400 436 109 400 428 107 2 70-130/20
10061-01-5 cis-1,3-Dichloropropene ND 400 454 114 400 461 115 2 70-130/20
10061-02-6 trans-1,3-Dichloropropene ND 400 395 99 400 406 102 3 70-130/20
108-20-3 Di-Isopropyl Ether 36.7 400 486 112 400 478 110 2 70-130/20
64-17-5 Ethyl Alcohol ND 8000 9130 114 8000 9570 120 5 70-130/20
100-41-4 Ethylbenzene ND 400 399 100 400 399 100 0 70-130/20
* = Outside of Control Limits.
58 of 64
LA9104655.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 2 of 3
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA91046-5MS 2K0146887.D 20 06/05/23 MB n/a n/a V2K4126
LA91046-5MSD 2K0146888.D 20 06/05/23 MB n/a n/a V2K4126
LA91046-5 2K0146884.D 5 06/05/23 MB n/a n/a V2K4126
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-2, LA91046-3, LA91046-4, LA91046-5, LA91046-6, LA91046-7, LA91046-8, LA91046-9
LA91046-5 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
591-78-6 2-Hexanone ND 1000 935 94 1000 916 92 2 70-130/20
87-68-3 Hexachlorobutadiene ND 400 402 101 400 406 102 1 70-130/20
98-82-8 Isopropylbenzene 6.9 400 426 105 400 425 105 0 70-130/20
99-87-6 p-Isopropyltoluene ND 400 439 110 400 440 110 0 70-130/20
74-83-9 Methyl Bromide ND 400 420 105 400 439 110 4 60-140/20
74-87-3 Methyl Chloride ND 400 365 91 400 343 86 6 60-140/20
74-95-3 Methylene Bromide ND 400 406 102 400 412 103 1 70-130/20
75-09-2 Methylene Chloride 0.63 J 400 407 102 400 401 100 1 70-130/20
78-93-3 Methyl Ethyl Ketone ND 1000 906 91 1000 934 93 3 70-130/20
108-10-1 4-Methyl-2-pentanone ND 1000 983 98 1000 1010 101 3 70-130/20
1634-04-4 Methyl Tert Butyl Ether 2.7 400 438 109 400 447 111 2 70-130/20
91-20-3 Naphthalene 35.9 400 437 100 400 450 104 3 70-130/20
103-65-1 n-Propylbenzene ND 400 449 112 400 444 111 1 70-130/20
100-42-5 Styrene ND 400 456 114 400 454 114 0 70-130/20
630-20-6 1,1,1,2-Tetrachloroethane ND 400 462 116 400 471 118 2 70-130/20
79-34-5 1,1,2,2-Tetrachloroethane ND 400 455 114 400 464 116 2 70-130/20
127-18-4 Tetrachloroethylene ND 400 348 87 400 347 87 0 70-130/20
108-88-3 Toluene ND 400 416 104 400 418 105 0 70-130/20
87-61-6 1,2,3-Trichlorobenzene ND 400 437 109 400 451 113 3 70-130/20
120-82-1 1,2,4-Trichlorobenzene ND 400 426 107 400 436 109 2 70-130/20
71-55-6 1,1,1-Trichloroethane ND 400 459 115 400 459 115 0 70-130/20
79-00-5 1,1,2-Trichloroethane ND 400 403 101 400 408 102 1 70-130/20
79-01-6 Trichloroethylene ND 400 385 96 400 378 95 2 70-130/20
75-69-4 Trichlorofluoromethane ND 400 281 70 400 277 69 1 60-140/20
96-18-4 1,2,3-Trichloropropane ND 400 408 102 400 424 106 4 70-130/20
95-63-6 1,2,4-Trimethylbenzene 6.6 400 452 111 400 451 111 0 70-130/20
108-67-8 1,3,5-Trimethylbenzene ND 400 456 114 400 453 113 1 70-130/20
108-05-4 Vinyl Acetate ND 400 512 128 400 529 132* a 3 70-130/20
75-01-4 Vinyl Chloride ND 400 320 80 400 316 79 1 60-140/20
m,p-Xylene 2.3 J 800 808 101 800 808 101 0 70-130/20
95-47-6 o-Xylene 5.1 400 388 96 400 387 95 0 70-130/20
1330-20-7 Xylene (total)7.4 1200 1200 99 1200 1190 99 1 70-130/20
* = Outside of Control Limits.
59 of 64
LA9104655.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 3 of 3
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA91046-5MS 2K0146887.D 20 06/05/23 MB n/a n/a V2K4126
LA91046-5MSD 2K0146888.D 20 06/05/23 MB n/a n/a V2K4126
LA91046-5 2K0146884.D 5 06/05/23 MB n/a n/a V2K4126
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-2, LA91046-3, LA91046-4, LA91046-5, LA91046-6, LA91046-7, LA91046-8, LA91046-9
CAS No.Surrogate Recoveries MS MSD LA91046-5 Limits
17060-07-0 1,2-Dichloroethane-D4 113%112%111%70-130%
2037-26-5 Toluene-D8 102%101%100%70-130%
460-00-4 4-Bromofluorobenzene 97%98%98%70-130%
(a) Outside control limits due to matrix interference. Blank Spike meets acceptance criteria.
* = Outside of Control Limits.
60 of 64
LA9104655.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 3
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA91046-2MS 2K0146906.D 200 06/06/23 MB n/a n/a V2K4127
LA91046-2MSD 2K0146907.D 200 06/06/23 MB n/a n/a V2K4127
LA91046-2 a 2K0146905.D 5 06/06/23 MB n/a n/a V2K4127
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-1, LA91046-10
LA91046-2 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
67-64-1 Acetone ND 10000 6530 65* b 10000 5920 59* b 10 70-130/20
71-43-2 Benzene 548 E 4000 6740 155* b 4000 6920 159* b 3 70-130/20
108-86-1 Bromobenzene ND 4000 4130 103 4000 4090 102 1 70-130/20
74-97-5 Bromochloromethane ND 4000 4170 104 4000 4230 106 1 70-130/20
75-27-4 Bromodichloromethane ND 4000 4440 111 4000 4590 115 3 70-130/20
75-25-2 Bromoform ND 4000 4150 104 4000 4210 105 1 70-130/20
104-51-8 n-Butylbenzene ND 4000 4720 118 4000 4770 119 1 70-130/20
135-98-8 sec-Butylbenzene ND 4000 4470 112 4000 4540 114 2 70-130/20
98-06-6 tert-Butylbenzene ND 4000 4540 114 4000 4630 116 2 70-130/20
56-23-5 Carbon Tetrachloride ND 4000 4540 114 4000 4690 117 3 70-130/20
108-90-7 Chlorobenzene ND 4000 4140 104 4000 4170 104 1 70-130/20
75-00-3 Chloroethane ND 4000 3950 99 4000 4180 105 6 60-140/20
67-66-3 Chloroform ND 4000 3950 99 4000 3970 99 1 70-130/20
95-49-8 o-Chlorotoluene ND 4000 4430 111 4000 4570 114 3 70-130/20
106-43-4 p-Chlorotoluene ND 4000 4250 106 4000 4390 110 3 70-130/20
124-48-1 Dibromochloromethane ND 4000 4040 101 4000 4120 103 2 70-130/20
96-12-8 1,2-Dibromo-3-chloropropane ND 4000 3970 99 4000 4050 101 2 70-130/20
106-93-4 1,2-Dibromoethane ND 4000 4440 111 4000 4430 111 0 70-130/20
75-71-8 Dichlorodifluoromethane ND 4000 4310 108 4000 4380 110 2 60-140/20
541-73-1 m-Dichlorobenzene ND 4000 4320 108 4000 4390 110 2 70-130/20
95-50-1 o-Dichlorobenzene ND 4000 4380 110 4000 4390 110 0 70-130/20
106-46-7 p-Dichlorobenzene ND 4000 4130 103 4000 4180 105 1 70-130/20
75-34-3 1,1-Dichloroethane ND 4000 4150 104 4000 4210 105 1 70-130/20
107-06-2 1,2-Dichloroethane 7.1 4000 4010 100 4000 4030 101 0 70-130/20
75-35-4 1,1-Dichloroethylene ND 4000 4260 107 4000 4380 110 3 70-130/20
156-59-2 cis-1,2-Dichloroethylene ND 4000 4030 101 4000 4160 104 3 70-130/20
156-60-5 trans-1,2-Dichloroethylene ND 4000 4190 105 4000 4290 107 2 70-130/20
78-87-5 1,2-Dichloropropane ND 4000 4120 103 4000 4200 105 2 70-130/20
142-28-9 1,3-Dichloropropane ND 4000 4290 107 4000 4300 108 0 70-130/20
594-20-7 2,2-Dichloropropane ND 4000 4370 109 4000 4560 114 4 70-130/20
563-58-6 1,1-Dichloropropene ND 4000 4250 106 4000 4350 109 2 70-130/20
10061-01-5 cis-1,3-Dichloropropene ND 4000 4570 114 4000 4660 117 2 70-130/20
10061-02-6 trans-1,3-Dichloropropene ND 4000 4010 100 4000 4070 102 1 70-130/20
108-20-3 Di-Isopropyl Ether 12.1 4000 4270 106 4000 4290 107 0 70-130/20
64-17-5 Ethyl Alcohol ND 80000 78700 98 80000 70800 89 11 70-130/20
100-41-4 Ethylbenzene 126 4000 4690 114 4000 4660 113 1 70-130/20
* = Outside of Control Limits.
61 of 64
LA9104655.3.2
Matrix Spike/Matrix Spike Duplicate Summary Page 2 of 3
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA91046-2MS 2K0146906.D 200 06/06/23 MB n/a n/a V2K4127
LA91046-2MSD 2K0146907.D 200 06/06/23 MB n/a n/a V2K4127
LA91046-2 a 2K0146905.D 5 06/06/23 MB n/a n/a V2K4127
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-1, LA91046-10
LA91046-2 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
591-78-6 2-Hexanone ND 10000 9020 90 10000 9210 92 2 70-130/20
87-68-3 Hexachlorobutadiene ND 4000 4460 112 4000 4540 114 2 70-130/20
98-82-8 Isopropylbenzene 7.4 4000 4330 108 4000 4280 107 1 70-130/20
99-87-6 p-Isopropyltoluene ND 4000 4530 113 4000 4590 115 1 70-130/20
74-83-9 Methyl Bromide ND 4000 4420 111 4000 4990 125 12 60-140/20
74-87-3 Methyl Chloride ND 4000 4030 101 4000 4040 101 0 60-140/20
74-95-3 Methylene Bromide ND 4000 4060 102 4000 4120 103 1 70-130/20
75-09-2 Methylene Chloride ND 4000 3810 95 4000 3850 96 1 70-130/20
78-93-3 Methyl Ethyl Ketone ND 10000 8710 87 10000 8650 87 1 70-130/20
108-10-1 4-Methyl-2-pentanone ND 10000 9950 100 10000 9790 98 2 70-130/20
1634-04-4 Methyl Tert Butyl Ether ND 4000 4130 103 4000 4170 104 1 70-130/20
91-20-3 Naphthalene 44.1 4000 4320 107 4000 4330 107 0 70-130/20
103-65-1 n-Propylbenzene 20.0 4000 4540 113 4000 4630 115 2 70-130/20
100-42-5 Styrene ND 4000 4520 113 4000 4520 113 0 70-130/20
630-20-6 1,1,1,2-Tetrachloroethane ND 4000 4670 117 4000 4630 116 1 70-130/20
79-34-5 1,1,2,2-Tetrachloroethane ND 4000 4470 112 4000 4520 113 1 70-130/20
127-18-4 Tetrachloroethylene ND 4000 3660 92 4000 3700 93 1 70-130/20
108-88-3 Toluene 109 4000 5000 122 4000 5060 124 1 70-130/20
87-61-6 1,2,3-Trichlorobenzene ND 4000 4540 114 4000 4650 116 2 70-130/20
120-82-1 1,2,4-Trichlorobenzene ND 4000 4400 110 4000 4490 112 2 70-130/20
71-55-6 1,1,1-Trichloroethane ND 4000 4480 112 4000 4630 116 3 70-130/20
79-00-5 1,1,2-Trichloroethane ND 4000 4100 103 4000 4050 101 1 70-130/20
79-01-6 Trichloroethylene ND 4000 3810 95 4000 3890 97 2 70-130/20
75-69-4 Trichlorofluoromethane ND 4000 4320 108 4000 4480 112 4 60-140/20
96-18-4 1,2,3-Trichloropropane 2.0 J 4000 4200 105 4000 4080 102 3 70-130/20
95-63-6 1,2,4-Trimethylbenzene 113 4000 4960 121 4000 5070 124 2 70-130/20
108-67-8 1,3,5-Trimethylbenzene 34.3 4000 4720 117 4000 4790 119 1 70-130/20
108-05-4 Vinyl Acetate ND 4000 4830 121 4000 4910 123 2 70-130/20
75-01-4 Vinyl Chloride ND 4000 4200 105 4000 4350 109 4 60-140/20
m,p-Xylene 346 8000 9870 119 8000 9830 119 0 70-130/20
95-47-6 o-Xylene 179 4000 4730 114 4000 4730 114 0 70-130/20
1330-20-7 Xylene (total)525 12000 14600 117 12000 14600 117 0 70-130/20
* = Outside of Control Limits.
62 of 64
LA9104655.3.2
Matrix Spike/Matrix Spike Duplicate Summary Page 3 of 3
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA91046-2MS 2K0146906.D 200 06/06/23 MB n/a n/a V2K4127
LA91046-2MSD 2K0146907.D 200 06/06/23 MB n/a n/a V2K4127
LA91046-2 a 2K0146905.D 5 06/06/23 MB n/a n/a V2K4127
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-1, LA91046-10
CAS No.Surrogate Recoveries MS MSD LA91046-2 Limits
17060-07-0 1,2-Dichloroethane-D4 105%106%108%70-130%
2037-26-5 Toluene-D8 102%101%100%70-130%
460-00-4 4-Bromofluorobenzene 97%96%96%70-130%
(a) Sample used for QC purposes only.
(b) Outside control limits due to matrix interference. Blank Spike meets acceptance criteria.
* = Outside of Control Limits.
63 of 64
LA9104655.3.2
Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 1
Job Number:LA91046
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA91046-2MS 2K0146923.D 20 06/07/23 MB n/a n/a V2K4128
LA91046-2MSD 2K0146924.D 20 06/07/23 MB n/a n/a V2K4128
LA91046-2 2K0146920.D 10 06/07/23 MB n/a n/a V2K4128
The QC reported here applies to the following samples:Method: SM 6200B
LA91046-2
LA91046-2 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
71-43-2 Benzene 552 400 986 109 400 974 106 1 70-130/20
100-41-4 Ethylbenzene 124 400 538 104 400 525 100 2 70-130/20
95-63-6 1,2,4-Trimethylbenzene 108 400 573 116 400 560 113 2 70-130/20
m,p-Xylene 341 800 1170 104 800 1160 102 1 70-130/20
95-47-6 o-Xylene 178 400 571 98 400 566 97 1 70-130/20
1330-20-7 Xylene (total)519 1200 1740 102 1200 1720 100 1 70-130/20
CAS No.Surrogate Recoveries MS MSD LA91046-2 Limits
17060-07-0 1,2-Dichloroethane-D4 109%109%110%70-130%
2037-26-5 Toluene-D8 100%101%99%70-130%
460-00-4 4-Bromofluorobenzene 96%96%97%70-130%
* = Outside of Control Limits.
64 of 64
LA9104655.3.3
06/23/23
Technical Report for
Atlas
Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
STL115860 1
SGS Job Number: LA91604
Sampling Date: 06/16/23
Report to:
ATC Group Services LLC.
2725 East Millbrook Road Suite 121
Raleigh, NC 27604
[e-mail]
ATTN: Gabe Araos
Total number of pages in report:
Certifications: LDEQ(2048), LDHH(LA150012), AR(14-045-04), AZ(AZ0805), FL(E87657), IL(200082), KY(#31),
NC(487), SC(73004001), NJ(LA007), TX(T104704186-18-16), WV(257)
This report shall not be reproduced, except in its entirety, without the written approval of SGS.
Test results relate only to samples analyzed.
SGS North America Inc. • 500 Ambassador Caffery • Scott, LA 70583 • tel: [phone]
Test results contained within this data package meet the requirements
of the National Environmental Laboratory Accreditation Program
and/or state specific certification programs as applicable.
Client Service contact: Rebecca Hebert 337-237-4775
Kesavalu Bagawandoss
General Manager
Scott, LA 06/23/23
e-Hardcopy 2.0
Automated Report
27
SGS is the sole authority for authorizing edits or modifications to this document.
Unauthorized modification of this report is strictly prohibited.
Review standard terms at: http://www.sgs.com/en/terms-and-conditions
The results set forth herein are provided by SGS North America Inc.
Please share your ideas about
how we can serve you better at:
[e-mail]
1 of 27
LA91604
Table of Contents
-1-
Sections:
Section 1: Sample Summary ...................................................................................................3
Section 2: Summary of Hits ....................................................................................................4
Section 3: Sample Results ........................................................................................................5
3.1: LA91604-1: WSW 3 .....................................................................................................6
3.2: LA91604-2: WSW 4 .....................................................................................................9
Section 4: Misc. Forms ............................................................................................................12
4.1: Chain of Custody ...........................................................................................................13
Section 5: MS Volatiles - QC Data Summaries .....................................................................18
5.1: Method Blank Summary ................................................................................................19
5.2: Blank Spike/Blank Spike Duplicate Summary ..............................................................22
5.3: Matrix Spike/Matrix Spike Duplicate Summary ...........................................................25 123452 of 27
LA91604
SGS North America Inc.
Sample Summary
Atlas
Job No:LA91604
Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Project No: STL115860 1
Sample Collected Matrix Client
Number Date Time By Received Code Type Sample ID
This report contains results reported as ND = Not detected. The following applies:
Organics ND = Not detected above the MDL
LA91604-1 06/16/23 12:50 BB 06/20/23 AQ Ground Water WSW 3
LA91604-2 06/16/23 13:15 BB 06/20/23 AQ Ground Water WSW 4
3 of 27
LA916041
Summary of Hits Page 1 of 1
Job Number:LA91604
Account:Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Collected:06/16/23
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
LA91604-1 WSW 3
1,2-Dichloroethane 1.2 0.20 0.12 ug/l SM 6200B
Ethyl Alcohol 10.1 J 50 8.4 ug/l SM 6200B
LA91604-2 WSW 4
Ethyl Alcohol 8.6 J 50 8.4 ug/l SM 6200B
4 of 27
LA916042
SGS North America Inc.
Sample Results
Report of Analysis
Scott, LA
Section 3
5 of 27
LA916043
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:WSW 3
Lab Sample ID:LA91604-1 Date Sampled:06/16/23
Matrix:AQ - Ground Water Date Received:06/20/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0147191.D 1 06/22/23 16:39 MB n/a n/a V2K4139
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropan a ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane 1.2 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
6 of 27
LA9160433.1
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:WSW 3
Lab Sample ID:LA91604-1 Date Sampled:06/16/23
Matrix:AQ - Ground Water Date Received:06/20/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol 10.1 50 8.4 ug/l J
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 107%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
7 of 27
LA9160433.1
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:WSW 3
Lab Sample ID:LA91604-1 Date Sampled:06/16/23
Matrix:AQ - Ground Water Date Received:06/20/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 96%70-130%
(a) Provisional certification.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
8 of 27
LA9160433.1
SGS North America Inc.
Report of Analysis Page 1 of 3
Client Sample ID:WSW 4
Lab Sample ID:LA91604-2 Date Sampled:06/16/23
Matrix:AQ - Ground Water Date Received:06/20/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 2K0147192.D 1 06/22/23 17:07 MB n/a n/a V2K4139
Run #2
Purge Volume
Run #1 25.0 ml
Run #2
VOA Special List
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropan a ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
9 of 27
LA9160433.2
SGS North America Inc.
Report of Analysis Page 2 of 3
Client Sample ID:WSW 4
Lab Sample ID:LA91604-2 Date Sampled:06/16/23
Matrix:AQ - Ground Water Date Received:06/20/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Compound Result RL MDL Units Q
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol 8.6 50 8.4 ug/l J
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
17060-07-0 1,2-Dichloroethane-D4 105%70-130%
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
10 of 27
LA9160433.2
SGS North America Inc.
Report of Analysis Page 3 of 3
Client Sample ID:WSW 4
Lab Sample ID:LA91604-2 Date Sampled:06/16/23
Matrix:AQ - Ground Water Date Received:06/20/23
Method:SM 6200B Percent Solids:n/a
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
VOA Special List
CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits
2037-26-5 Toluene-D8 99%70-130%
460-00-4 4-Bromofluorobenzene 97%70-130%
(a) Provisional certification.
ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
11 of 27
LA9160433.2
SGS North America Inc.
Misc. Forms
Custody Documents and Other Forms
Includes the following where applicable:
• Chain of Custody
Scott, LA
Section 4
12 of 27
LA916044
CHAIN OF CUSTODY PAGE \ OF t
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Note: Sample invontory is verified upon receiptllEaboratory
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LA91604: Chain of Custody
Page 1 of 5
13 of 27
LA9160444.1
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LA91604: Chain of Custody
Page 2 of 5
14 of 27
LA9160444.1
Job Number:LA91604 Client:ATC
Date / Time Received:6/20/2023 9:30:00 AM Delivery Method:FEDEX
Project:BARBARA SPENCER PROPERTY
Airbill #'s:5707 9051 5519
Cooler Temps (Raw Measured) °C:
Cooler Temps (Corrected) °C:
Cooler 1: (5.2);
Cooler 1: (5.2);
SGS Sample Receipt Summary
LA91604: Chain of Custody
Page 3 of 5
15 of 27
LA9160444.1
4. No. Coolers:1
Cooler Security
1. Custody Seals Present:
Y or N
2. Custody Seals Intact:
3. COC Present:
4. Smpl Dates/Time OK
2. Cooler temp verification:
Cooler Temperature Y or N
1. Temp criteria achieved:
3. Cooler media:Ice (direct contact)
Quality Control Preservatio Y or N N/A
1. Trip Blank present / cooler:
2. Trip Blank listed on COC:
3. Samples preserved properly:
4. VOCs headspace free:
Sample Integrity - Documentation Y or N
1. Sample labels present on bottles:
2. Container labeling complete:
3. Sample container label / COC agree:
Sample Integrity - Condition Y or N
1. Sample recvd within HT:
3. Condition of sample:
2. All containers accounted for:
Sample Integrity - Instructions
1. Analysis requested is clear:
2. Bottles received for unspecified tests
3. Sufficient volume recvd for analysis:
4. Compositing instructions clear:
5. Filtering instructions clear:
Intact
Y or N
Y or N N/A
LA91604: Chain of Custody
Page 4 of 5
16 of 27
LA9160444.1
Comments
SM089-03
Rev. Date 12/7/17
Test Strip Lot #s:pH 1-12:pH 12+:Other: (Specify)
LA91604: Chain of Custody
Page 5 of 5
17 of 27
LA9160444.1
SGS North America Inc.
MS Volatiles
QC Data Summaries
Includes the following where applicable:
• Method Blank Summaries
• Blank Spike Summaries
• Matrix Spike and Duplicate Summaries
Scott, LA
Section 5
18 of 27
LA916045
Method Blank Summary Page 1 of 3
Job Number:LA91604
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4139-MB1 2K0147190.D 1 06/22/23 MB n/a n/a V2K4139
The QC reported here applies to the following samples:Method: SM 6200B
LA91604-1, LA91604-2
CAS No.Compound Result RL MDL Units Q
67-64-1 Acetone ND 10 1.2 ug/l
71-43-2 Benzene ND 0.50 0.27 ug/l
108-86-1 Bromobenzene ND 0.50 0.18 ug/l
74-97-5 Bromochloromethane ND 0.50 0.12 ug/l
75-27-4 Bromodichloromethane ND 0.50 0.18 ug/l
75-25-2 Bromoform ND 0.50 0.10 ug/l
104-51-8 n-Butylbenzene ND 0.50 0.092 ug/l
135-98-8 sec-Butylbenzene ND 0.50 0.14 ug/l
98-06-6 tert-Butylbenzene ND 0.50 0.16 ug/l
56-23-5 Carbon Tetrachloride ND 0.20 0.092 ug/l
108-90-7 Chlorobenzene ND 0.50 0.16 ug/l
75-00-3 Chloroethane ND 0.50 0.055 ug/l
67-66-3 Chloroform ND 0.50 0.094 ug/l
95-49-8 o-Chlorotoluene ND 0.50 0.16 ug/l
106-43-4 p-Chlorotoluene ND 0.50 0.20 ug/l
124-48-1 Dibromochloromethane ND 0.20 0.075 ug/l
96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.13 ug/l
106-93-4 1,2-Dibromoethane ND 0.50 0.24 ug/l
75-71-8 Dichlorodifluoromethane ND 0.50 0.12 ug/l
541-73-1 m-Dichlorobenzene ND 0.50 0.063 ug/l
95-50-1 o-Dichlorobenzene ND 0.50 0.20 ug/l
106-46-7 p-Dichlorobenzene ND 0.50 0.22 ug/l
75-34-3 1,1-Dichloroethane ND 0.50 0.10 ug/l
107-06-2 1,2-Dichloroethane ND 0.20 0.12 ug/l
75-35-4 1,1-Dichloroethylene ND 0.50 0.094 ug/l
156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.11 ug/l
156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.15 ug/l
78-87-5 1,2-Dichloropropane ND 0.30 0.13 ug/l
142-28-9 1,3-Dichloropropane ND 0.50 0.21 ug/l
594-20-7 2,2-Dichloropropane ND 0.50 0.079 ug/l
563-58-6 1,1-Dichloropropene ND 0.50 0.12 ug/l
10061-01-5 cis-1,3-Dichloropropene ND 0.20 0.10 ug/l
10061-02-6 trans-1,3-Dichloropropene ND 0.20 0.056 ug/l
108-20-3 Di-Isopropyl Ether ND 0.50 0.073 ug/l
64-17-5 Ethyl Alcohol 13.3 50 8.4 ug/l J
100-41-4 Ethylbenzene ND 0.50 0.20 ug/l
19 of 27
LA9160455.1.1
Method Blank Summary Page 2 of 3
Job Number:LA91604
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4139-MB1 2K0147190.D 1 06/22/23 MB n/a n/a V2K4139
The QC reported here applies to the following samples:Method: SM 6200B
LA91604-1, LA91604-2
CAS No.Compound Result RL MDL Units Q
591-78-6 2-Hexanone ND 1.0 0.42 ug/l
87-68-3 Hexachlorobutadiene ND 0.20 0.11 ug/l
98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l
99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l
74-83-9 Methyl Bromide ND 0.50 0.23 ug/l
74-87-3 Methyl Chloride ND 0.50 0.066 ug/l
74-95-3 Methylene Bromide ND 0.50 0.11 ug/l
75-09-2 Methylene Chloride ND 0.50 0.080 ug/l
78-93-3 Methyl Ethyl Ketone ND 25 0.28 ug/l
108-10-1 4-Methyl-2-pentanone ND 0.50 0.24 ug/l
1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.068 ug/l
91-20-3 Naphthalene ND 0.50 0.10 ug/l
103-65-1 n-Propylbenzene ND 0.50 0.22 ug/l
100-42-5 Styrene ND 0.50 0.13 ug/l
630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.18 ug/l
79-34-5 1,1,2,2-Tetrachloroethane ND 0.20 0.12 ug/l
127-18-4 Tetrachloroethylene ND 0.50 0.22 ug/l
108-88-3 Toluene ND 0.50 0.29 ug/l
87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.16 ug/l
120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.17 ug/l
71-55-6 1,1,1-Trichloroethane ND 0.50 0.16 ug/l
79-00-5 1,1,2-Trichloroethane ND 0.30 0.17 ug/l
79-01-6 Trichloroethylene ND 0.50 0.18 ug/l
75-69-4 Trichlorofluoromethane ND 0.50 0.073 ug/l
96-18-4 1,2,3-Trichloropropane ND 0.50 0.023 ug/l
95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.15 ug/l
108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.16 ug/l
108-05-4 Vinyl Acetate ND 0.50 0.069 ug/l
75-01-4 Vinyl Chloride ND 0.10 0.075 ug/l
m,p-Xylene ND 1.0 0.34 ug/l
95-47-6 o-Xylene ND 0.50 0.15 ug/l
1330-20-7 Xylene (total)ND 0.50 0.16 ug/l
20 of 27
LA9160455.1.1
Method Blank Summary Page 3 of 3
Job Number:LA91604
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4139-MB1 2K0147190.D 1 06/22/23 MB n/a n/a V2K4139
The QC reported here applies to the following samples:Method: SM 6200B
LA91604-1, LA91604-2
CAS No.Surrogate Recoveries Limits
17060-07-0 1,2-Dichloroethane-D4 102%70-130%
2037-26-5 Toluene-D8 100%70-130%
460-00-4 4-Bromofluorobenzene 97%70-130%
21 of 27
LA9160455.1.1
Blank Spike/Blank Spike Duplicate Summary Page 1 of 3
Job Number:LA91604
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4139-BS1 2K0147187.D 1 06/22/23 MB n/a n/a V2K4139
V2K4139-BSD1 2K0147188.D 1 06/22/23 MB n/a n/a V2K4139
The QC reported here applies to the following samples:Method: SM 6200B
LA91604-1, LA91604-2
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
67-64-1 Acetone 50 67.8 136* a 65.3 131* a 4 70-130/30
71-43-2 Benzene 20 19.1 96 19.3 97 1 70-130/30
108-86-1 Bromobenzene 20 19.3 97 19.0 95 2 70-130/30
74-97-5 Bromochloromethane 20 18.2 91 18.1 91 1 70-130/30
75-27-4 Bromodichloromethane 20 20.4 102 20.0 100 2 70-130/30
75-25-2 Bromoform 20 21.2 106 21.2 106 0 70-130/30
104-51-8 n-Butylbenzene 20 20.9 105 21.0 105 0 70-130/30
135-98-8 sec-Butylbenzene 20 20.3 102 20.5 103 1 70-130/30
98-06-6 tert-Butylbenzene 20 20.0 100 20.0 100 0 70-130/30
56-23-5 Carbon Tetrachloride 20 20.8 104 21.0 105 1 70-130/30
108-90-7 Chlorobenzene 20 18.9 95 19.0 95 1 70-130/30
75-00-3 Chloroethane 20 16.9 85 17.4 87 3 60-140/30
67-66-3 Chloroform 20 18.7 94 19.4 97 4 70-130/30
95-49-8 o-Chlorotoluene 20 19.4 97 19.7 99 2 70-130/30
106-43-4 p-Chlorotoluene 20 19.1 96 19.6 98 3 70-130/30
124-48-1 Dibromochloromethane 20 20.0 100 20.2 101 1 70-130/30
96-12-8 1,2-Dibromo-3-chloropropane 20 20.6 103 19.9 100 3 70-130/30
106-93-4 1,2-Dibromoethane 20 20.0 100 19.7 99 2 70-130/30
75-71-8 Dichlorodifluoromethane 20 23.0 115 23.3 117 1 60-140/30
541-73-1 m-Dichlorobenzene 20 18.9 95 19.1 96 1 70-130/30
95-50-1 o-Dichlorobenzene 20 18.5 93 18.5 93 0 70-130/30
106-46-7 p-Dichlorobenzene 20 18.8 94 18.7 94 1 70-130/30
75-34-3 1,1-Dichloroethane 20 19.5 98 19.7 99 1 70-130/30
107-06-2 1,2-Dichloroethane 20 19.2 96 19.2 96 0 70-130/30
75-35-4 1,1-Dichloroethylene 20 21.0 105 21.2 106 1 70-130/30
156-59-2 cis-1,2-Dichloroethylene 20 19.0 95 19.3 97 2 70-130/30
156-60-5 trans-1,2-Dichloroethylene 20 19.9 100 20.0 100 1 70-130/30
78-87-5 1,2-Dichloropropane 20 19.0 95 19.3 97 2 70-130/30
142-28-9 1,3-Dichloropropane 20 19.6 98 19.7 99 1 70-130/30
594-20-7 2,2-Dichloropropane 20 21.3 107 21.9 110 3 70-130/30
563-58-6 1,1-Dichloropropene 20 20.5 103 21.0 105 2 70-130/30
10061-01-5 cis-1,3-Dichloropropene 20 22.2 111 22.1 111 0 70-130/30
10061-02-6 trans-1,3-Dichloropropene 20 20.5 103 20.4 102 0 70-130/30
108-20-3 Di-Isopropyl Ether 20 20.5 103 20.4 102 0 70-130/30
64-17-5 Ethyl Alcohol 400 447 112 370 93 19 70-130/30
100-41-4 Ethylbenzene 20 19.6 98 19.7 99 1 70-130/30
* = Outside of Control Limits.
22 of 27
LA9160455.2.1
Blank Spike/Blank Spike Duplicate Summary Page 2 of 3
Job Number:LA91604
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4139-BS1 2K0147187.D 1 06/22/23 MB n/a n/a V2K4139
V2K4139-BSD1 2K0147188.D 1 06/22/23 MB n/a n/a V2K4139
The QC reported here applies to the following samples:Method: SM 6200B
LA91604-1, LA91604-2
Spike BSP BSP BSD BSD Limits
CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD
591-78-6 2-Hexanone 50 45.6 91 44.4 89 3 70-130/30
87-68-3 Hexachlorobutadiene 20 21.6 108 21.9 110 1 70-130/30
98-82-8 Isopropylbenzene 20 20.2 101 20.3 102 0 70-130/30
99-87-6 p-Isopropyltoluene 20 20.5 103 20.7 104 1 70-130/30
74-83-9 Methyl Bromide 20 24.8 124 26.1 131 5 60-140/30
74-87-3 Methyl Chloride 20 19.2 96 19.3 97 1 60-140/30
74-95-3 Methylene Bromide 20 18.9 95 18.8 94 1 70-130/30
75-09-2 Methylene Chloride 20 21.7 109 21.9 110 1 70-130/30
78-93-3 Methyl Ethyl Ketone 50 46.9 94 46.6 93 1 70-130/30
108-10-1 4-Methyl-2-pentanone 50 49.9 100 49.7 99 0 70-130/30
1634-04-4 Methyl Tert Butyl Ether 20 20.4 102 20.6 103 1 70-130/30
91-20-3 Naphthalene 20 19.5 98 19.3 97 1 70-130/30
103-65-1 n-Propylbenzene 20 20.7 104 20.6 103 0 70-130/30
100-42-5 Styrene 20 22.3 112 22.6 113 1 70-130/30
630-20-6 1,1,1,2-Tetrachloroethane 20 20.0 100 19.8 99 1 70-130/30
79-34-5 1,1,2,2-Tetrachloroethane 20 18.6 93 18.4 92 1 70-130/30
127-18-4 Tetrachloroethylene 20 18.5 93 19.2 96 4 70-130/30
108-88-3 Toluene 20 18.9 95 19.4 97 3 70-130/30
87-61-6 1,2,3-Trichlorobenzene 20 22.5 113 22.2 111 1 70-130/30
120-82-1 1,2,4-Trichlorobenzene 20 22.1 111 21.8 109 1 70-130/30
71-55-6 1,1,1-Trichloroethane 20 20.2 101 20.7 104 2 70-130/30
79-00-5 1,1,2-Trichloroethane 20 18.8 94 19.0 95 1 70-130/30
79-01-6 Trichloroethylene 20 20.6 103 20.6 103 0 70-130/30
75-69-4 Trichlorofluoromethane 20 19.8 99 20.3 102 2 60-140/30
96-18-4 1,2,3-Trichloropropane 20 18.1 91 17.4 87 4 70-130/30
95-63-6 1,2,4-Trimethylbenzene 20 20.5 103 20.6 103 0 70-130/30
108-67-8 1,3,5-Trimethylbenzene 20 20.4 102 20.6 103 1 70-130/30
108-05-4 Vinyl Acetate 20 24.3 122 24.0 120 1 70-130/30
75-01-4 Vinyl Chloride 20 20.1 101 20.4 102 1 60-140/30
m,p-Xylene 40 39.6 99 39.5 99 0 70-130/30
95-47-6 o-Xylene 20 20.7 104 20.6 103 0 70-130/30
1330-20-7 Xylene (total)60 60.3 101 60.1 100 0 70-130/30
* = Outside of Control Limits.
23 of 27
LA9160455.2.1
Blank Spike/Blank Spike Duplicate Summary Page 3 of 3
Job Number:LA91604
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
V2K4139-BS1 2K0147187.D 1 06/22/23 MB n/a n/a V2K4139
V2K4139-BSD1 2K0147188.D 1 06/22/23 MB n/a n/a V2K4139
The QC reported here applies to the following samples:Method: SM 6200B
LA91604-1, LA91604-2
CAS No.Surrogate Recoveries BSP BSD Limits
17060-07-0 1,2-Dichloroethane-D4 101%103%70-130%
2037-26-5 Toluene-D8 103%101%70-130%
460-00-4 4-Bromofluorobenzene 101%99%70-130%
(a) Outside control limits.
* = Outside of Control Limits.
24 of 27
LA9160455.2.1
Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 3
Job Number:LA91604
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA91684-3MS 2K0147208.D 20 06/23/23 MB n/a n/a V2K4139
LA91684-3MSD 2K0147209.D 20 06/23/23 MB n/a n/a V2K4139
LA91684-3 2K0147207.D 5 06/23/23 MB n/a n/a V2K4139
The QC reported here applies to the following samples:Method: SM 6200B
LA91604-1, LA91604-2
LA91684-3 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
67-64-1 Acetone ND 1000 666 67* a 1000 642 64* a 4 70-130/20
71-43-2 Benzene 4.2 400 375 93 400 378 93 1 70-130/20
108-86-1 Bromobenzene ND 400 364 91 400 371 93 2 70-130/20
74-97-5 Bromochloromethane ND 400 355 89 400 361 90 2 70-130/20
75-27-4 Bromodichloromethane ND 400 396 99 400 409 102 3 70-130/20
75-25-2 Bromoform ND 400 400 100 400 408 102 2 70-130/20
104-51-8 n-Butylbenzene ND 400 451 113 400 455 114 1 70-130/20
135-98-8 sec-Butylbenzene ND 400 390 98 400 396 99 2 70-130/20
98-06-6 tert-Butylbenzene ND 400 404 101 400 407 102 1 70-130/20
56-23-5 Carbon Tetrachloride ND 400 400 100 400 397 99 1 70-130/20
108-90-7 Chlorobenzene ND 400 363 91 400 366 92 1 70-130/20
75-00-3 Chloroethane ND 400 352 88 400 352 88 0 60-140/20
67-66-3 Chloroform ND 400 360 90 400 359 90 0 70-130/20
95-49-8 o-Chlorotoluene ND 400 373 93 400 384 96 3 70-130/20
106-43-4 p-Chlorotoluene ND 400 377 94 400 374 94 1 70-130/20
124-48-1 Dibromochloromethane ND 400 389 97 400 395 99 2 70-130/20
96-12-8 1,2-Dibromo-3-chloropropane ND 400 405 101 400 418 105 3 70-130/20
106-93-4 1,2-Dibromoethane ND 400 387 97 400 397 99 3 70-130/20
75-71-8 Dichlorodifluoromethane ND 400 386 97 400 382 96 1 60-140/20
541-73-1 m-Dichlorobenzene ND 400 367 92 400 368 92 0 70-130/20
95-50-1 o-Dichlorobenzene ND 400 363 91 400 360 90 1 70-130/20
106-46-7 p-Dichlorobenzene ND 400 360 90 400 367 92 2 70-130/20
75-34-3 1,1-Dichloroethane ND 400 381 95 400 384 96 1 70-130/20
107-06-2 1,2-Dichloroethane ND 400 370 93 400 383 96 3 70-130/20
75-35-4 1,1-Dichloroethylene ND 400 407 102 400 403 101 1 70-130/20
156-59-2 cis-1,2-Dichloroethylene ND 400 377 94 400 378 95 0 70-130/20
156-60-5 trans-1,2-Dichloroethylene ND 400 388 97 400 382 96 2 70-130/20
78-87-5 1,2-Dichloropropane ND 400 375 94 400 387 97 3 70-130/20
142-28-9 1,3-Dichloropropane ND 400 381 95 400 394 99 3 70-130/20
594-20-7 2,2-Dichloropropane ND 400 383 96 400 383 96 0 70-130/20
563-58-6 1,1-Dichloropropene ND 400 401 100 400 398 100 1 70-130/20
10061-01-5 cis-1,3-Dichloropropene ND 400 424 106 400 432 108 2 70-130/20
10061-02-6 trans-1,3-Dichloropropene ND 400 388 97 400 392 98 1 70-130/20
108-20-3 Di-Isopropyl Ether 0.82 400 401 100 400 406 101 1 70-130/20
64-17-5 Ethyl Alcohol ND 8000 7610 95 8000 8000 100 5 70-130/20
100-41-4 Ethylbenzene 27.9 400 399 93 400 402 94 1 70-130/20
* = Outside of Control Limits.
25 of 27
LA9160455.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 2 of 3
Job Number:LA91604
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA91684-3MS 2K0147208.D 20 06/23/23 MB n/a n/a V2K4139
LA91684-3MSD 2K0147209.D 20 06/23/23 MB n/a n/a V2K4139
LA91684-3 2K0147207.D 5 06/23/23 MB n/a n/a V2K4139
The QC reported here applies to the following samples:Method: SM 6200B
LA91604-1, LA91604-2
LA91684-3 Spike MS MS Spike MSD MSD Limits
CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD
591-78-6 2-Hexanone ND 1000 794 79 1000 828 83 4 70-130/20
87-68-3 Hexachlorobutadiene ND 400 397 99 400 400 100 1 70-130/20
98-82-8 Isopropylbenzene 4.7 400 383 95 400 392 97 2 70-130/20
99-87-6 p-Isopropyltoluene 1.7 400 399 99 400 401 100 1 70-130/20
74-83-9 Methyl Bromide ND 400 388 97 400 456 114 16 60-140/20
74-87-3 Methyl Chloride ND 400 359 90 400 350 88 3 60-140/20
74-95-3 Methylene Bromide ND 400 369 92 400 385 96 4 70-130/20
75-09-2 Methylene Chloride ND 400 422 106 400 431 108 2 70-130/20
78-93-3 Methyl Ethyl Ketone ND 1000 779 78 1000 785 79 1 70-130/20
108-10-1 4-Methyl-2-pentanone ND 1000 943 94 1000 998 100 6 70-130/20
1634-04-4 Methyl Tert Butyl Ether 202 400 606 101 400 624 106 3 70-130/20
91-20-3 Naphthalene 19.6 400 399 95 400 408 97 2 70-130/20
103-65-1 n-Propylbenzene 21.1 400 418 99 400 419 99 0 70-130/20
100-42-5 Styrene ND 400 426 107 400 435 109 2 70-130/20
630-20-6 1,1,1,2-Tetrachloroethane ND 400 382 96 400 388 97 2 70-130/20
79-34-5 1,1,2,2-Tetrachloroethane ND 400 372 93 400 377 94 1 70-130/20
127-18-4 Tetrachloroethylene ND 400 281 70 400 283 71 1 70-130/20
108-88-3 Toluene 6.4 400 376 92 400 375 92 0 70-130/20
87-61-6 1,2,3-Trichlorobenzene ND 400 423 106 400 428 107 1 70-130/20
120-82-1 1,2,4-Trichlorobenzene ND 400 408 102 400 424 106 4 70-130/20
71-55-6 1,1,1-Trichloroethane ND 400 394 99 400 400 100 2 70-130/20
79-00-5 1,1,2-Trichloroethane ND 400 375 94 400 379 95 1 70-130/20
79-01-6 Trichloroethylene ND 400 401 100 400 400 100 0 70-130/20
75-69-4 Trichlorofluoromethane ND 400 347 87 400 343 86 1 60-140/20
96-18-4 1,2,3-Trichloropropane ND 400 334 84 400 347 87 4 70-130/20
95-63-6 1,2,4-Trimethylbenzene 127 400 515 97 400 517 98 0 70-130/20
108-67-8 1,3,5-Trimethylbenzene 39.0 400 431 98 400 431 98 0 70-130/20
108-05-4 Vinyl Acetate ND 400 479 120 400 490 123 2 70-130/20
75-01-4 Vinyl Chloride ND 400 364 91 400 368 92 1 60-140/20
m,p-Xylene 96.7 800 846 94 800 850 94 0 70-130/20
95-47-6 o-Xylene 33.2 400 427 98 400 429 99 0 70-130/20
1330-20-7 Xylene (total)130 1200 1270 95 1200 1280 96 1 70-130/20
* = Outside of Control Limits.
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LA9160455.3.1
Matrix Spike/Matrix Spike Duplicate Summary Page 3 of 3
Job Number:LA91604
Account:ATCNCR Atlas
Project:Barbara Spencer 1540 Gentry Ridge Rd, Roxboro, NC
Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
LA91684-3MS 2K0147208.D 20 06/23/23 MB n/a n/a V2K4139
LA91684-3MSD 2K0147209.D 20 06/23/23 MB n/a n/a V2K4139
LA91684-3 2K0147207.D 5 06/23/23 MB n/a n/a V2K4139
The QC reported here applies to the following samples:Method: SM 6200B
LA91604-1, LA91604-2
CAS No.Surrogate Recoveries MS MSD LA91684-3 Limits
17060-07-0 1,2-Dichloroethane-D4 99%98%99%70-130%
2037-26-5 Toluene-D8 101%102%98%70-130%
460-00-4 4-Bromofluorobenzene 96%97%97%70-130%
(a) Outside control limits due to matrix interference.
* = Outside of Control Limits.
27 of 27
LA9160455.3.1
Barbara Spencer Property

ATC Project No. STL1158601 NCDEQ State Lead Program

SIGNED WATER SUPPLY WELL ACCESS LETTER
APPENDIX E